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31136650103 = 1313917231129
BaseRepresentation
bin11100111111111000…
…111001001101110111
32222100222002201012002
4130333320321031313
51002231440300403
622145354245515
72151411105356
oct347770711567
988328081162
1031136650103
1112228911089
12604b72689b
132c22a08920
1417153a799d
15c237ee188
hex73fe39377

31136650103 has 8 divisors (see below), whose sum is σ = 33773014800. Its totient is φ = 28534747968.

The previous prime is 31136650093. The next prime is 31136650117. The reversal of 31136650103 is 30105663113.

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 31136650103 - 28 = 31136649847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31136650133) 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, 8613758 + ... + 8617371.

It is an arithmetic number, because the mean of its divisors is an integer number (4221626850).

Almost surely, 231136650103 is an apocalyptic number.

31136650103 is a deficient number, since it is larger than the sum of its proper divisors (2636364697).

31136650103 is a wasteful number, since it uses less digits than its factorization.

31136650103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17231281.

The product of its (nonzero) digits is 4860, while the sum is 29.

The spelling of 31136650103 in words is "thirty-one billion, one hundred thirty-six million, six hundred fifty thousand, one hundred three".

Divisors: 1 13 139 1807 17231129 224004677 2395126931 31136650103