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57099740 = 2258233469
BaseRepresentation
bin1101100111010…
…0010111011100
310222102222010012
43121310113130
5104104142430
65355502352
71262224355
oct331642734
9128388105
1057099740
112a25a975
12171579b8
13baa2b39
147824d2c
15502d695
hex36745dc

57099740 has 24 divisors (see below), whose sum is σ = 120089760. Its totient is φ = 22805568.

The previous prime is 57099727. The next prime is 57099773. The reversal of 57099740 is 4799075.

It is a happy number.

It is a congruent number.

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, 14726 + ... + 18194.

It is an arithmetic number, because the mean of its divisors is an integer number (5003740).

Almost surely, 257099740 is an apocalyptic number.

It is an amenable number.

57099740 is an abundant number, since it is smaller than the sum of its proper divisors (62990020).

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

57099740 is a wasteful number, since it uses less digits than its factorization.

57099740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301 (or 4299 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 57099740 is about 7556.4369910693. The cubic root of 57099740 is about 385.0744557186.

The spelling of 57099740 in words is "fifty-seven million, ninety-nine thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 823 1646 3292 3469 4115 6938 8230 13876 16460 17345 34690 69380 2854987 5709974 11419948 14274935 28549870 57099740