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31369009974445 = 51113147129825113
BaseRepresentation
bin1110010000111101010101…
…01100100100110010101101
311010001211220020111010211201
413020132222230210302231
513102422213023140240
6150414420234045501
76415223211231433
oct710365254446255
9133054806433751
1031369009974445
119aa4582384480
123627635b79891
131467114826ba0
147a63a7c78d53
15395ea744dd9a
hex1c87aab24cad

31369009974445 has 32 divisors (see below), whose sum is σ = 44253788350464. Its totient is φ = 21044599027200.

The previous prime is 31369009974361. The next prime is 31369009974457. The reversal of 31369009974445 is 54447990096313.

It is not a de Polignac number, because 31369009974445 - 221 = 31369007877293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13860792 + ... + 15964321.

It is an arithmetic number, because the mean of its divisors is an integer number (1382930885952).

Almost surely, 231369009974445 is an apocalyptic number.

It is an amenable number.

31369009974445 is a deficient number, since it is larger than the sum of its proper divisors (12884778376019).

31369009974445 is a wasteful number, since it uses less digits than its factorization.

31369009974445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29826613.

The product of its (nonzero) digits is 88179840, while the sum is 64.

The spelling of 31369009974445 in words is "thirty-one trillion, three hundred sixty-nine billion, nine million, nine hundred seventy-four thousand, four hundred forty-five".

Divisors: 1 5 11 13 55 65 143 715 1471 7355 16181 19123 80905 95615 210353 1051765 29825113 149125565 328076243 387726469 1640381215 1938632345 4264991159 21324955795 43872741223 219363706115 482600153453 570345635899 2413000767265 2851728179495 6273801994889 31369009974445