Number of the day: 3475

Properties of the number 3475:

3475 = 5² × 139 is the 2987^th composite number and is not squarefree.
3475 has 2 distinct prime factors, 6 divisors, 11 antidivisors and 2760 totatives.
3475 has a prime digit sum 19 in base 10.
3475 has an oblong digit product 420 in base 10.
Reversing the decimal digits of 3475 results in a prime.
3475 = 1738² - 1737² = 350² - 345² = 82² - 57² is the difference of 2 nonnegative squares in 3 ways.
3475 is the sum of 2 positive triangular numbers.
3475 is the difference of 2 positive pentagonal numbers in 3 ways.
3475 = 1² + 15² + 57² is the sum of 3 positive squares.
3475² = 2085² + 2780² = 973² + 3336² is the sum of 2 positive squares in 2 ways.
3475² is the sum of 3 positive squares.
3475 is a proper divisor of 557⁴ - 1.
3475 = '347' + '5' is the concatenation of 2 prime numbers.
3475 is palindromic in (at least) base 31.
3475 in base 30 = 3pp and consists of only the digits '3' and 'p'.
3475 in base 31 = 3j3 and consists of only the digits '3' and 'j'.
3475 in base 41 = 22V and consists of only the digits '2' and 'V'.
3475 in base 58 = 11r and consists of only the digits '1' and 'r'.