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231053452565450 = 25235573129903833
BaseRepresentation
bin110100100010010001010010…
…111101101101101111001010
31010022002111100101011220120212
4310202101102331231233022
5220241034432324043300
62135224254001121122
766445026643044224
oct6442212275555712
91108074311156525
10231053452565450
1167691245470919
1221ab78599291a2
139bc0329b054c8
14410b0924b9414
151baa36d111935
hexd22452f6dbca

231053452565450 has 24 divisors (see below), whose sum is σ = 429771506136588. Its totient is φ = 92418782238080.

The previous prime is 231053452565431. The next prime is 231053452565563. The reversal of 231053452565450 is 54565254350132.

It can be written as a sum of positive squares in 6 ways, for example, as 3303309885001 + 227750142680449 = 1817501^2 + 15091393^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 63173267 + ... + 66730566.

Almost surely, 2231053452565450 is an apocalyptic number.

231053452565450 is a deficient number, since it is larger than the sum of its proper divisors (198718053571138).

231053452565450 is a wasteful number, since it uses less digits than its factorization.

231053452565450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129939418 (or 129939413 counting only the distinct ones).

The product of its (nonzero) digits is 10800000, while the sum is 50.

The spelling of 231053452565450 in words is "two hundred thirty-one trillion, fifty-three billion, four hundred fifty-two million, five hundred sixty-five thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 35573 71146 177865 355730 889325 1778650 129903833 259807666 649519165 1299038330 3247595825 6495191650 4621069051309 9242138102618 23105345256545 46210690513090 115526726282725 231053452565450