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55373315472 = 2433180171171
BaseRepresentation
bin110011100100100000…
…011011110110010000
312021221001122212202000
4303210200123312100
51401401032043342
641234350154000
74000126262346
oct634440336620
9167831585660
1055373315472
112153587a542
12a8944b2900
1352b6059037
14297420b996
15169148d44c
hexce481bd90

55373315472 has 80 divisors (see below), whose sum is σ = 159032410560. Its totient is φ = 18447264000.

The previous prime is 55373315471. The next prime is 55373315479. The reversal of 55373315472 is 27451337355.

55373315472 is a `hidden beast` number, since 5 + 5 + 3 + 73 + 31 + 547 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (55373315471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742447 + ... + 813617.

It is an arithmetic number, because the mean of its divisors is an integer number (1987905132).

Almost surely, 255373315472 is an apocalyptic number.

It is an amenable number.

55373315472 is an abundant number, since it is smaller than the sum of its proper divisors (103659095088).

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

55373315472 is a wasteful number, since it uses less digits than its factorization.

55373315472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72989 (or 72977 counting only the distinct ones).

The product of its digits is 1323000, while the sum is 45.

The spelling of 55373315472 in words is "fifty-five billion, three hundred seventy-three million, three hundred fifteen thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 1801 3602 5403 7204 10806 14408 16209 21612 28816 32418 43224 48627 64836 71171 86448 97254 129672 142342 194508 213513 259344 284684 389016 427026 569368 640539 778032 854052 1138736 1281078 1708104 1921617 2562156 3416208 3843234 5124312 7686468 10248624 15372936 30745872 128178971 256357942 384536913 512715884 769073826 1025431768 1153610739 1538147652 2050863536 2307221478 3076295304 3460832217 4614442956 6152590608 6921664434 9228885912 13843328868 18457771824 27686657736 55373315472