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572427640 = 23514310691
BaseRepresentation
bin100010000111101…
…000110101111000
31110220010100002201
4202013220311320
52133020141030
6132445035544
720120361151
oct4207506570
91426110081
10572427640
112741363a4
1213b855bb4
13917938a5
145604a928
15353c32ca
hex221e8d78

572427640 has 16 divisors (see below), whose sum is σ = 1287962280. Its totient is φ = 228971040.

The previous prime is 572427623. The next prime is 572427641. The reversal of 572427640 is 46724275.

It is a self number, because there is not a number n which added to its sum of digits gives 572427640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572427641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7155306 + ... + 7155385.

Almost surely, 2572427640 is an apocalyptic number.

It is an amenable number.

572427640 is an abundant number, since it is smaller than the sum of its proper divisors (715534640).

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

572427640 is a wasteful number, since it uses less digits than its factorization.

572427640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14310702 (or 14310698 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 572427640 is about 23925.4600791709. The cubic root of 572427640 is about 830.3098663993.

The spelling of 572427640 in words is "five hundred seventy-two million, four hundred twenty-seven thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 14310691 28621382 57242764 71553455 114485528 143106910 286213820 572427640