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54471928 = 2372138959
BaseRepresentation
bin1100111111001…
…0110011111000
310210111110102211
43033302303320
5102421100203
65223304504
71231001200
oct317626370
9123443384
1054471928
1128825625
12162ab134
13b392a14
14733d400
154baec6d
hex33f2cf8

54471928 has 24 divisors (see below), whose sum is σ = 118810800. Its totient is φ = 23344944.

The previous prime is 54471913. The next prime is 54471953. The reversal of 54471928 is 82917445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69088 + ... + 69871.

It is an arithmetic number, because the mean of its divisors is an integer number (4950450).

Almost surely, 254471928 is an apocalyptic number.

It is an amenable number.

54471928 is an abundant number, since it is smaller than the sum of its proper divisors (64338872).

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

54471928 is a wasteful number, since it uses less digits than its factorization.

54471928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138979 (or 138968 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 54471928 is about 7380.5100094777. The cubic root of 54471928 is about 379.0742191446.

The spelling of 54471928 in words is "fifty-four million, four hundred seventy-one thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 138959 277918 555836 972713 1111672 1945426 3890852 6808991 7781704 13617982 27235964 54471928