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57293480 = 2351499613
BaseRepresentation
bin1101101010001…
…1101010101000
310222210210212202
43122203222220
5104131342410
65403555332
71263662246
oct332435250
9128723782
1057293480
112a382492
121722bb48
13bb4008a
147875796
15506aca5
hex36a3aa8

57293480 has 32 divisors (see below), whose sum is σ = 129789000. Its totient is φ = 22761216.

The previous prime is 57293459. The next prime is 57293491. The reversal of 57293480 is 8439275.

57293480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 51638596 + 5654884 = 7186^2 + 2378^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154 + ... + 10766.

Almost surely, 257293480 is an apocalyptic number.

It is an amenable number.

57293480 is an abundant number, since it is smaller than the sum of its proper divisors (72495520).

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

57293480 is a wasteful number, since it uses less digits than its factorization.

57293480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9773 (or 9769 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 57293480 is about 7569.2456691536. The cubic root of 57293480 is about 385.5094845880.

The spelling of 57293480 in words is "fifty-seven million, two hundred ninety-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 149 298 596 745 1192 1490 2980 5960 9613 19226 38452 48065 76904 96130 192260 384520 1432337 2864674 5729348 7161685 11458696 14323370 28646740 57293480