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8572142930 = 251365939561
BaseRepresentation
bin1111111101111000…
…01000010101010010
3211010101222222110012
413332330020111102
5120023432033210
63534334434522
7422266004231
oct77674102522
924111888405
108572142930
1136a982994a
1217b2962a42
13a67c37230
145b467cb18
15352864305
hex1fef08552

8572142930 has 16 divisors (see below), whose sum is σ = 16616769624. Its totient is φ = 3165098880.

The previous prime is 8572142911. The next prime is 8572142947. The reversal of 8572142930 is 392412758.

It can be written as a sum of positive squares in 4 ways, for example, as 6099766201 + 2472376729 = 78101^2 + 49723^2 .

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, 32969651 + ... + 32969910.

Almost surely, 28572142930 is an apocalyptic number.

8572142930 is a deficient number, since it is larger than the sum of its proper divisors (8044626694).

8572142930 is a wasteful number, since it uses less digits than its factorization.

8572142930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65939581.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 8572142930 is about 92585.8678740984. The cubic root of 8572142930 is about 2046.5850684128.

The spelling of 8572142930 in words is "eight billion, five hundred seventy-two million, one hundred forty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 65939561 131879122 329697805 659395610 857214293 1714428586 4286071465 8572142930