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31375588057 = 1128110150627
BaseRepresentation
bin11101001110001000…
…010111101011011001
32222222121201000102221
4131032020113223121
51003224122304212
622225211424041
72160342045442
oct351610275331
988877630387
1031375588057
1112340779770
1260b7755021
132c60377228
1417390042c9
15c3979a807
hex74e217ad9

31375588057 has 8 divisors (see below), whose sum is σ = 34349725152. Its totient is φ = 28421752800.

The previous prime is 31375588051. The next prime is 31375588063. The reversal of 31375588057 is 75088557313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31375588051) and next prime (31375588063).

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 31375588057 - 223 = 31367199449 is a prime.

It is a super-2 number, since 2×313755880572 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31375587995 and 31375588013.

It is not an unprimeable number, because it can be changed into a prime (31375588051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5072223 + ... + 5078404.

It is an arithmetic number, because the mean of its divisors is an integer number (4293715644).

Almost surely, 231375588057 is an apocalyptic number.

It is an amenable number.

31375588057 is a deficient number, since it is larger than the sum of its proper divisors (2974137095).

31375588057 is a wasteful number, since it uses less digits than its factorization.

31375588057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10150919.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 31375588057 in words is "thirty-one billion, three hundred seventy-five million, five hundred eighty-eight thousand, fifty-seven".

Divisors: 1 11 281 3091 10150627 111656897 2852326187 31375588057