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31903303319 = 257883114057
BaseRepresentation
bin11101101101100101…
…011100011010010111
310001100101200201200122
4131231211130122113
51010314221201234
622353422302155
72206410414056
oct355545343227
9101311621618
1031903303319
1112591645a88
12622442795b
1330157b4394
14178913239d
15c6ac8a92e
hex76d95c697

31903303319 has 8 divisors (see below), whose sum is σ = 32033346048. Its totient is φ = 31773306880.

The previous prime is 31903303301. The next prime is 31903303331. The reversal of 31903303319 is 91330330913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31903303319 - 224 = 31886526103 is a prime.

It is a super-2 number, since 2×319033033192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31903303219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262539 + ... + 2276595.

It is an arithmetic number, because the mean of its divisors is an integer number (4004168256).

Almost surely, 231903303319 is an apocalyptic number.

31903303319 is a deficient number, since it is larger than the sum of its proper divisors (130042729).

31903303319 is a wasteful number, since it uses less digits than its factorization.

31903303319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23145.

The product of its (nonzero) digits is 19683, while the sum is 35.

The spelling of 31903303319 in words is "thirty-one billion, nine hundred three million, three hundred three thousand, three hundred nineteen".

Divisors: 1 257 8831 14057 2269567 3612649 124137367 31903303319