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31303022195 = 523211834791
BaseRepresentation
bin11101001001110011…
…100011011001110011
32222210120011021210102
4131021303203121303
51003102033202240
622214100223015
72155501204244
oct351163433163
988716137712
1031303022195
1112303815985
12609739aa6b
132c4b31a853
14172d514ccb
15c33214815
hex749ce3673

31303022195 has 12 divisors (see below), whose sum is σ = 39267839856. Its totient is φ = 23953614960.

The previous prime is 31303022189. The next prime is 31303022209. The reversal of 31303022195 is 59122030313.

It is a de Polignac number, because none of the positive numbers 2k-31303022195 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5914751 + ... + 5920040.

It is an arithmetic number, because the mean of its divisors is an integer number (3272319988).

Almost surely, 231303022195 is an apocalyptic number.

31303022195 is a deficient number, since it is larger than the sum of its proper divisors (7964817661).

31303022195 is a wasteful number, since it uses less digits than its factorization.

31303022195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11834842 (or 11834819 counting only the distinct ones).

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

The spelling of 31303022195 in words is "thirty-one billion, three hundred three million, twenty-two thousand, one hundred ninety-five".

Divisors: 1 5 23 115 529 2645 11834791 59173955 272200193 1361000965 6260604439 31303022195