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56234465640 = 23325274156989
BaseRepresentation
bin110100010111110101…
…011101100101101000
312101011002001211200200
4310113311131211220
51410132010400030
641500031432200
74030354033263
oct642765354550
9171132054620
1056234465640
11219379873a1
12aa94985660
1353c259c552
142a16733cda
1516e1d93d60
hexd17d5d968

56234465640 has 96 divisors (see below), whose sum is σ = 182831898600. Its totient is φ = 14990123520.

The previous prime is 56234465627. The next prime is 56234465657. The reversal of 56234465640 is 4656443265.

It is a happy number.

56234465640 is a `hidden beast` number, since 56 + 2 + 34 + 4 + 6 + 564 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 49516040484 + 6718425156 = 222522^2 + 81966^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 958266 + ... + 1015254.

Almost surely, 256234465640 is an apocalyptic number.

It is an amenable number.

56234465640 is an abundant number, since it is smaller than the sum of its proper divisors (126597432960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56234465640 is a wasteful number, since it uses less digits than its factorization.

56234465640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59747 (or 59740 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 56234465640 in words is "fifty-six billion, two hundred thirty-four million, four hundred sixty-five thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 2741 5482 8223 10964 13705 16446 21928 24669 27410 32892 41115 49338 54820 56989 65784 82230 98676 109640 113978 123345 164460 170967 197352 227956 246690 284945 328920 341934 455912 493380 512901 569890 683868 854835 986760 1025802 1139780 1367736 1709670 2051604 2279560 2564505 3419340 4103208 5129010 6838680 10258020 20516040 156206849 312413698 468620547 624827396 781034245 937241094 1249654792 1405861641 1562068490 1874482188 2343102735 2811723282 3124136980 3748964376 4686205470 5623446564 6248273960 7029308205 9372410940 11246893128 14058616410 18744821880 28117232820 56234465640