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307227568 = 24191010617
BaseRepresentation
bin10010010011111…
…110101110110000
3210102002202222211
4102103332232300
51112122240233
650252541504
710420251124
oct2223765660
9712082884
10307227568
1114847068a
1286a81894
134b85b77b
142cb35584
151be8a5cd
hex124febb0

307227568 has 20 divisors (see below), whose sum is σ = 626583160. Its totient is φ = 145528704.

The previous prime is 307227563. The next prime is 307227589. The reversal of 307227568 is 865722703.

It is a self number, because there is not a number n which added to its sum of digits gives 307227568.

It is not an unprimeable number, because it can be changed into a prime (307227563) 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, 505005 + ... + 505612.

It is an arithmetic number, because the mean of its divisors is an integer number (31329158).

Almost surely, 2307227568 is an apocalyptic number.

307227568 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

307227568 is an abundant number, since it is smaller than the sum of its proper divisors (319355592).

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

307227568 is a wasteful number, since it uses less digits than its factorization.

307227568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010644 (or 1010638 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 307227568 is about 17527.9082608279. The cubic root of 307227568 is about 674.7663154499.

The spelling of 307227568 in words is "three hundred seven million, two hundred twenty-seven thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 1010617 2021234 4042468 8084936 16169872 19201723 38403446 76806892 153613784 307227568