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228177568 = 2529245881
BaseRepresentation
bin11011001100110…
…11011010100000
3120220100121210001
431212123122200
5431403140233
634350345344
75440322503
oct1546333240
9526317701
10228177568
11107889203
12644bb254
1338371918
142243913a
151507327d
hexd99b6a0

228177568 has 24 divisors (see below), whose sum is σ = 464716980. Its totient is φ = 110154240.

The previous prime is 228177563. The next prime is 228177581. The reversal of 228177568 is 865771822.

228177568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 200845584 + 27331984 = 14172^2 + 5228^2 .

It is not an unprimeable number, because it can be changed into a prime (228177563) 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, 122013 + ... + 123868.

Almost surely, 2228177568 is an apocalyptic number.

It is an amenable number.

228177568 is an abundant number, since it is smaller than the sum of its proper divisors (236539412).

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

228177568 is a wasteful number, since it uses less digits than its factorization.

228177568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245920 (or 245912 counting only the distinct ones).

The product of its digits is 376320, while the sum is 46.

The square root of 228177568 is about 15105.5475902067. The cubic root of 228177568 is about 611.0700273232.

The spelling of 228177568 in words is "two hundred twenty-eight million, one hundred seventy-seven thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 29 32 58 116 232 464 928 245881 491762 983524 1967048 3934096 7130549 7868192 14261098 28522196 57044392 114088784 228177568