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55768412688 = 24317113604811
BaseRepresentation
bin110011111100000011…
…100111001000010000
312022221121002220020020
4303330003213020100
51403203203201223
641341502343440
74012664454312
oct637403471020
9168847086206
1055768412688
11217188a696a
12a98488ab80
135349b71b81
1429b08977b2
1516b5ed41e3
hexcfc0e7210

55768412688 has 80 divisors (see below), whose sum is σ = 153893203776. Its totient is φ = 17341112320.

The previous prime is 55768412683. The next prime is 55768412717. The reversal of 55768412688 is 88621486755.

It is a super-2 number, since 2×557684126882 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55768412681) 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, 210198 + ... + 394613.

Almost surely, 255768412688 is an apocalyptic number.

It is an amenable number.

55768412688 is an abundant number, since it is smaller than the sum of its proper divisors (98124791088).

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

55768412688 is a wasteful number, since it uses less digits than its factorization.

55768412688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604952 (or 604946 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 60.

The spelling of 55768412688 in words is "fifty-five billion, seven hundred sixty-eight million, four hundred twelve thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 113 136 204 226 272 339 408 452 678 816 904 1356 1808 1921 2712 3842 5424 5763 7684 11526 15368 23052 30736 46104 92208 604811 1209622 1814433 2419244 3628866 4838488 7257732 9676976 10281787 14515464 20563574 29030928 30845361 41127148 61690722 68343643 82254296 123381444 136687286 164508592 205030929 246762888 273374572 410061858 493525776 546749144 820123716 1093498288 1161841931 1640247432 2323683862 3280494864 3485525793 4647367724 6971051586 9294735448 13942103172 18589470896 27884206344 55768412688