Number of the day: 931330

Properties of the number 931330:

931330 = 2 × 5 × 93133 is a sphenic number and squarefree.
931330 has 3 distinct prime factors, 8 divisors, 5 antidivisors and 372528 totatives.
931330 has a prime digit sum 19 in base 10.
931330 is the difference of 2 positive pentagonal numbers in 2 ways.
931330 = 611² + 747² = 231² + 937² is the sum of 2 positive squares in 2 ways.
931330 = 192² + 215² + 921² is the sum of 3 positive squares.
931330² = 558798² + 745064² = 184688² + 912834² = 432894² + 824608² = 399950² + 841080² is the sum of 2 positive squares in 4 ways.
931330² is the sum of 3 positive squares.
931330 is a proper divisor of 1361¹¹⁷ - 1.