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57997284 = 2239914877
BaseRepresentation
bin1101110100111…
…1011111100100
311001010120022120
43131033133210
5104321403114
65431025540
71302653202
oct335173744
9131116276
1057997284
112a813244
121750b2b0
13c028527
1479ba072
1551595a9
hex374f7e4

57997284 has 24 divisors (see below), whose sum is σ = 135491328. Its totient is φ = 19308960.

The previous prime is 57997267. The next prime is 57997301. The reversal of 57997284 is 48279975.

It is an interprime number because it is at equal distance from previous prime (57997267) and next prime (57997301).

It is an unprimeable number.

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, 9454 + ... + 14330.

It is an arithmetic number, because the mean of its divisors is an integer number (5645472).

Almost surely, 257997284 is an apocalyptic number.

It is an amenable number.

57997284 is an abundant number, since it is smaller than the sum of its proper divisors (77494044).

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

57997284 is a wasteful number, since it uses less digits than its factorization.

57997284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875 (or 5873 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 57997284 is about 7615.5947896405. The cubic root of 57997284 is about 387.0816218415.

The spelling of 57997284 in words is "fifty-seven million, nine hundred ninety-seven thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 991 1982 2973 3964 4877 5946 9754 11892 14631 19508 29262 58524 4833107 9666214 14499321 19332428 28998642 57997284