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57929420 = 2253778283
BaseRepresentation
bin1101110011111…
…0111011001100
311001000010020002
43130332323030
5104312220140
65425343432
71302251303
oct334767314
9131003202
1057929420
112a77725a
1217497b78
13c003683
14799d43a
155144415
hex373eecc

57929420 has 24 divisors (see below), whose sum is σ = 124941264. Its totient is φ = 22545216.

The previous prime is 57929413. The next prime is 57929429. The reversal of 57929420 is 2492975.

57929420 is nontrivially palindromic in base 15.

It is not an unprimeable number, because it can be changed into a prime (57929429) by changing a digit.

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, 38402 + ... + 39881.

It is an arithmetic number, because the mean of its divisors is an integer number (5205886).

Almost surely, 257929420 is an apocalyptic number.

It is an amenable number.

57929420 is an abundant number, since it is smaller than the sum of its proper divisors (67011844).

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

57929420 is a wasteful number, since it uses less digits than its factorization.

57929420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78329 (or 78327 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 57929420 is about 7611.1378912749. The cubic root of 57929420 is about 386.9305851147.

The spelling of 57929420 in words is "fifty-seven million, nine hundred twenty-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 78283 156566 313132 391415 782830 1565660 2896471 5792942 11585884 14482355 28964710 57929420