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54886660 = 2254615953
BaseRepresentation
bin1101000101100…
…0000100000100
310211021112100021
43101120010010
5103022333120
65240224524
71234346263
oct321300404
9124245307
1054886660
1128a89184
121646b144
13b4a971a
14740a5da
154c42aaa
hex3458104

54886660 has 24 divisors (see below), whose sum is σ = 115531416. Its totient is φ = 21903360.

The previous prime is 54886639. The next prime is 54886661. The reversal of 54886660 is 6668845.

It can be written as a sum of positive squares in 4 ways, for example, as 746496 + 54140164 = 864^2 + 7358^2 .

It is not an unprimeable number, because it can be changed into a prime (54886661) 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, 6244 + ... + 12196.

It is an arithmetic number, because the mean of its divisors is an integer number (4813809).

Almost surely, 254886660 is an apocalyptic number.

It is an amenable number.

54886660 is an abundant number, since it is smaller than the sum of its proper divisors (60644756).

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

54886660 is a wasteful number, since it uses less digits than its factorization.

54886660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423 (or 6421 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 54886660 is about 7408.5531650924. The cubic root of 54886660 is about 380.0338381686.

The spelling of 54886660 in words is "fifty-four million, eight hundred eighty-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 461 922 1844 2305 4610 5953 9220 11906 23812 29765 59530 119060 2744333 5488666 10977332 13721665 27443330 54886660