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56890794558 = 2313729369161
BaseRepresentation
bin110100111110111101…
…001010001000111110
312102211211001210201010
4310332331022020332
51413003020411213
642045115100050
74052543526543
oct647675121076
9172754053633
1056890794558
1122144408a94
12b038741626
13549855b160
142a79980bca
15172e7dbac3
hexd3ef4a23e

56890794558 has 16 divisors (see below), whose sum is σ = 122534019216. Its totient is φ = 17504859840.

The previous prime is 56890794557. The next prime is 56890794601. The reversal of 56890794558 is 85549709865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56890794557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364684503 + ... + 364684658.

It is an arithmetic number, because the mean of its divisors is an integer number (7658376201).

Almost surely, 256890794558 is an apocalyptic number.

56890794558 is an abundant number, since it is smaller than the sum of its proper divisors (65643224658).

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

56890794558 is a wasteful number, since it uses less digits than its factorization.

56890794558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729369179.

The product of its (nonzero) digits is 108864000, while the sum is 66.

The spelling of 56890794558 in words is "fifty-six billion, eight hundred ninety million, seven hundred ninety-four thousand, five hundred fifty-eight".

Divisors: 1 2 3 6 13 26 39 78 729369161 1458738322 2188107483 4376214966 9481799093 18963598186 28445397279 56890794558