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56839810454 = 2717238822733
BaseRepresentation
bin110100111011111010…
…101010110110010110
312102201021010112122222
4310323322222312112
51412401442413304
642040054222342
74051354263050
oct647372526626
9172637115588
1056839810454
1122118655969
12b0236549b2
13548ab19b4b
142a72cac8d0
15172a0ba4be
hexd3beaad96

56839810454 has 16 divisors (see below), whose sum is σ = 103171421088. Its totient is φ = 22926982272.

The previous prime is 56839810453. The next prime is 56839810483. The reversal of 56839810454 is 45401893865.

It is a super-2 number, since 2×568398104542 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56839810396 and 56839810405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56839810453) 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, 119411129 + ... + 119411604.

It is an arithmetic number, because the mean of its divisors is an integer number (6448213818).

Almost surely, 256839810454 is an apocalyptic number.

56839810454 is a deficient number, since it is larger than the sum of its proper divisors (46331610634).

56839810454 is a wasteful number, since it uses less digits than its factorization.

56839810454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238822759.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 56839810454 in words is "fifty-six billion, eight hundred thirty-nine million, eight hundred ten thousand, four hundred fifty-four".

Divisors: 1 2 7 14 17 34 119 238 238822733 477645466 1671759131 3343518262 4059986461 8119972922 28419905227 56839810454