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31373325601 = 307102193243
BaseRepresentation
bin11101001101111111…
…101111010100100001
32222222110110001221021
4131031333233110201
51003223032404401
622225051125441
72160313603402
oct351577572441
988873401837
1031373325601
111233a473972
1260b6a43881
132c5ca644b7
1417389b59a9
15c394a02a1
hex74dfef521

31373325601 has 4 divisors (see below), whose sum is σ = 31475519152. Its totient is φ = 31271132052.

The previous prime is 31373325587. The next prime is 31373325623. The reversal of 31373325601 is 10652337313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31373325601 - 25 = 31373325569 is a prime.

It is a super-2 number, since 2×313733256012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31373325001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51096315 + ... + 51096928.

It is an arithmetic number, because the mean of its divisors is an integer number (7868879788).

Almost surely, 231373325601 is an apocalyptic number.

It is an amenable number.

31373325601 is a deficient number, since it is larger than the sum of its proper divisors (102193551).

31373325601 is a wasteful number, since it uses less digits than its factorization.

31373325601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102193550.

The product of its (nonzero) digits is 34020, while the sum is 34.

The spelling of 31373325601 in words is "thirty-one billion, three hundred seventy-three million, three hundred twenty-five thousand, six hundred one".

Divisors: 1 307 102193243 31373325601