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31125652113 = 310499890579
BaseRepresentation
bin11100111111001110…
…111100001010010001
32222100012101221210010
4130333032330022101
51002221131331423
622144322425133
72151215451303
oct347716741221
988305357703
1031125652113
111222268a136
126047b021a9
132c20657a3a
141713b43973
15c2287a693
hex73f3bc291

31125652113 has 8 divisors (see below), whose sum is σ = 41540436000. Its totient is φ = 20730651488.

The previous prime is 31125652111. The next prime is 31125652133.

31125652113 is nontrivially palindromic in base 10.

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 31125652113 - 21 = 31125652111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31125652111) 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, 4942143 + ... + 4948436.

It is an arithmetic number, because the mean of its divisors is an integer number (5192554500).

Almost surely, 231125652113 is an apocalyptic number.

It is an amenable number.

31125652113 is a deficient number, since it is larger than the sum of its proper divisors (10414783887).

31125652113 is a wasteful number, since it uses less digits than its factorization.

31125652113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891631.

The product of its digits is 5400, while the sum is 30.

The spelling of 31125652113 in words is "thirty-one billion, one hundred twenty-five million, six hundred fifty-two thousand, one hundred thirteen".

Divisors: 1 3 1049 3147 9890579 29671737 10375217371 31125652113