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31717693029 = 3114123442493
BaseRepresentation
bin11101100010100001…
…011001011001100101
310000212110102202020110
4131202201121121211
51004424212134104
622323152123233
72201664641151
oct354241313145
9100773382213
1031717693029
11124a68a1250
126192236519
132cb61c79c9
14176c618061
15c59824e89
hex762859665

31717693029 has 16 divisors (see below), whose sum is σ = 47260067904. Its totient is φ = 18753993600.

The previous prime is 31717693019. The next prime is 31717693031. The reversal of 31717693029 is 92039671713.

It is a happy number.

It is not a de Polignac number, because 31717693029 - 231 = 29570209381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31717693009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11719894 + ... + 11722599.

It is an arithmetic number, because the mean of its divisors is an integer number (2953754244).

Almost surely, 231717693029 is an apocalyptic number.

It is an amenable number.

31717693029 is a deficient number, since it is larger than the sum of its proper divisors (15542374875).

31717693029 is a wasteful number, since it uses less digits than its factorization.

31717693029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23442548.

The product of its (nonzero) digits is 428652, while the sum is 48.

The spelling of 31717693029 in words is "thirty-one billion, seven hundred seventeen million, six hundred ninety-three thousand, twenty-nine".

Divisors: 1 3 11 33 41 123 451 1353 23442493 70327479 257867423 773602269 961142213 2883426639 10572564343 31717693029