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31331204314 = 21372834653
BaseRepresentation
bin11101001011011111…
…000011110011011010
32222212112012002101121
4131023133003303122
51003131242014224
622220544235454
72156262561664
oct351337036332
988775162347
1031331204314
1112318714593
1260a490bb8a
132c54107267
14173316d534
15c3592ebe4
hex74b7c3cda

31331204314 has 12 divisors (see below), whose sum is σ = 47342409534. Its totient is φ = 15551236064.

The previous prime is 31331204309. The next prime is 31331204339. The reversal of 31331204314 is 41340213313.

It can be written as a sum of positive squares in 3 ways, for example, as 23185239289 + 8145965025 = 152267^2 + 90255^2 .

It is a super-2 number, since 2×313312043142 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379789 + ... + 454864.

Almost surely, 231331204314 is an apocalyptic number.

31331204314 is a deficient number, since it is larger than the sum of its proper divisors (16011205220).

31331204314 is an equidigital number, since it uses as much as digits as its factorization.

31331204314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834929 (or 834792 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31331204314 its reverse (41340213313), we get a palindrome (72671417627).

The spelling of 31331204314 in words is "thirty-one billion, three hundred thirty-one million, two hundred four thousand, three hundred fourteen".

Divisors: 1 2 137 274 18769 37538 834653 1669306 114347461 228694922 15665602157 31331204314