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57029990 = 255996661
BaseRepresentation
bin1101100110001…
…1010101100110
310222022102102212
43121203111212
5104044424430
65354203422
71261514123
oct331432546
9128272385
1057029990
112a212526
1217123572
13ba7a174
14780774a
155017b95
hex3663566

57029990 has 16 divisors (see below), whose sum is σ = 104394960. Its totient is φ = 22425120.

The previous prime is 57029989. The next prime is 57029993. The reversal of 57029990 is 9992075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57029993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47741 + ... + 48920.

It is an arithmetic number, because the mean of its divisors is an integer number (6524685).

Almost surely, 257029990 is an apocalyptic number.

57029990 is a deficient number, since it is larger than the sum of its proper divisors (47364970).

57029990 is a wasteful number, since it uses less digits than its factorization.

57029990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96727.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 57029990 is about 7551.8203103623. The cubic root of 57029990 is about 384.9175963517.

The spelling of 57029990 in words is "fifty-seven million, twenty-nine thousand, nine hundred ninety".

Divisors: 1 2 5 10 59 118 295 590 96661 193322 483305 966610 5702999 11405998 28514995 57029990