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42657708 = 2235960251
BaseRepresentation
bin1010001010111…
…0011110101100
32222021020101010
42202232132230
541410021313
64122145220
71025404332
oct242563654
988236333
1042657708
1122096405
1212352210
138ab7462
145945b52
153b294c3
hex28ae7ac

42657708 has 24 divisors (see below), whose sum is σ = 101223360. Its totient is φ = 13978000.

The previous prime is 42657691. The next prime is 42657731. The reversal of 42657708 is 80775624.

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, 29418 + ... + 30833.

It is an arithmetic number, because the mean of its divisors is an integer number (4217640).

Almost surely, 242657708 is an apocalyptic number.

It is an amenable number.

42657708 is an abundant number, since it is smaller than the sum of its proper divisors (58565652).

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

42657708 is a wasteful number, since it uses less digits than its factorization.

42657708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60317 (or 60315 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 42657708 is about 6531.2868563553. The cubic root of 42657708 is about 349.4077275695.

It can be divided in two parts, 42657 and 708, that added together give a triangular number (43365 = T294).

The spelling of 42657708 in words is "forty-two million, six hundred fifty-seven thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 60251 120502 180753 241004 361506 723012 3554809 7109618 10664427 14219236 21328854 42657708