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55101843668 = 22317997103563
BaseRepresentation
bin110011010100010100…
…110110100011010100
312021020010211200102202
4303110110312203110
51400322032444133
641151411424032
73660321641354
oct632424664324
9167203750382
1055101843668
1121406610783
12a8195b5018
135271a39331
14294a142b64
1516777172e8
hexcd45368d4

55101843668 has 96 divisors (see below), whose sum is σ = 103009320960. Its totient is φ = 25754526720.

The previous prime is 55101843661. The next prime is 55101843673. The reversal of 55101843668 is 86634810155.

It is a super-2 number, since 2×551018436682 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55101843661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97871555 + ... + 97872117.

It is an arithmetic number, because the mean of its divisors is an integer number (1073013760).

Almost surely, 255101843668 is an apocalyptic number.

It is an amenable number.

55101843668 is a deficient number, since it is larger than the sum of its proper divisors (47907477292).

55101843668 is a wasteful number, since it uses less digits than its factorization.

55101843668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 55101843668 in words is "fifty-five billion, one hundred one million, eight hundred forty-three thousand, six hundred sixty-eight".

Divisors: 1 2 4 31 62 79 97 103 124 158 194 206 316 388 412 563 1126 2252 2449 3007 3193 4898 6014 6386 7663 8137 9796 9991 12028 12772 15326 16274 17453 19982 30652 32548 34906 39964 44477 54611 57989 69812 88954 109222 115978 177908 218444 231956 237553 252247 309721 475106 504494 619442 789289 950212 1008988 1238884 1378787 1578578 1692941 1797659 2757574 3157156 3385882 3595318 4314269 4581131 5515148 5624933 6771764 7190636 8628538 9162262 11249866 17257076 18324524 22499732 24467959 48935918 97871836 133742339 142015061 174372923 267484678 284030122 348745846 444369707 534969356 568060244 697491692 888739414 1777478828 13775460917 27550921834 55101843668