Number of the day: 45489434

Properties of the number 45489434:

45489434 = 2 × 22744717 is semiprime and squarefree.
45489434 has 2 distinct prime factors, 4 divisors, 13 antidivisors and 22744716 totatives.
45489434 has a prime digit sum 41 in base 10.
45489434 has sum of divisors equal to 68234154 which is a sphenic number.
Reversing the decimal digits of 45489434 results in a sphenic number.
45489434 = 2975² + 6053² is the sum of 2 positive squares in 1 way.
45489434 = 137² + 172² + 6741² is the sum of 3 positive squares.
45489434² = 27788184² + 36015350² is the sum of 2 positive squares in 1 way.
45489434² is the sum of 3 positive squares.
45489434 is a proper divisor of 7^1895393 - 1.
45489434 = '4548943' + '4' is the concatenation of 2 semiprime numbers.
45489434 = '45489' + '434' is the concatenation of 2 sphenic numbers.
45489434 is an emirpimes in (at least) the following bases: 7, 9, 11, 23, 62, 66, 67, 70, 72, 74, 77, 80, 86, 91, 93, 96, and 99.