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55680338960 = 2454391158507
BaseRepresentation
bin110011110110110011…
…101000110000010000
312022201110101021210022
4303312303220300100
51403013131321320
641325034523012
74010545033511
oct636663506020
9168643337708
1055680338960
1121683110864
12a95b296468
13533484593c
1429a2ccca08
1516ad3d8325
hexcf6ce8c10

55680338960 has 40 divisors (see below), whose sum is σ = 129487087296. Its totient is φ = 22266922880.

The previous prime is 55680338957. The next prime is 55680338963. The reversal of 55680338960 is 6983308655.

It is an interprime number because it is at equal distance from previous prime (55680338957) and next prime (55680338963).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (55680338963) 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 7 ways as a sum of consecutive naturals, for example, 272027 + ... + 430533.

Almost surely, 255680338960 is an apocalyptic number.

It is an amenable number.

55680338960 is an abundant number, since it is smaller than the sum of its proper divisors (73806748336).

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

55680338960 is a wasteful number, since it uses less digits than its factorization.

55680338960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162911 (or 162905 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 55680338960 in words is "fifty-five billion, six hundred eighty million, three hundred thirty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4391 8782 17564 21955 35128 43910 70256 87820 158507 175640 317014 351280 634028 792535 1268056 1585070 2536112 3170140 6340280 12680560 696004237 1392008474 2784016948 3480021185 5568033896 6960042370 11136067792 13920084740 27840169480 55680338960