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57984940 = 22513223019
BaseRepresentation
bin1101110100110…
…0011110101100
311001002221101101
43131030132230
5104321004230
65430452444
71302602206
oct335143654
9131087341
1057984940
112a804a42
1217504124
13c022a20
1479b5776
155155aca
hex374c7ac

57984940 has 24 divisors (see below), whose sum is σ = 131135760. Its totient is φ = 21409728.

The previous prime is 57984937. The next prime is 57984959. The reversal of 57984940 is 4948975.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111250 + ... + 111769.

It is an arithmetic number, because the mean of its divisors is an integer number (5463990).

Almost surely, 257984940 is an apocalyptic number.

It is an amenable number.

57984940 is an abundant number, since it is smaller than the sum of its proper divisors (73150820).

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

57984940 is a wasteful number, since it uses less digits than its factorization.

57984940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223041 (or 223039 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 57984940 is about 7614.7843042334. The cubic root of 57984940 is about 387.0541580579.

The spelling of 57984940 in words is "fifty-seven million, nine hundred eighty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 223019 446038 892076 1115095 2230190 2899247 4460380 5798494 11596988 14496235 28992470 57984940