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228928908 = 223131467493
BaseRepresentation
bin11011010010100…
…10110110001100
3120221202210102110
431221102312030
5432101211113
634414424020
75446602135
oct1551226614
9527683373
10228928908
1110825174a
1264802010
13385758c0
1422592c8c
1515170bc3
hexda52d8c

228928908 has 24 divisors (see below), whose sum is σ = 575257648. Its totient is φ = 70439616.

The previous prime is 228928907. The next prime is 228928937. The reversal of 228928908 is 809829822.

228928908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228928907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733591 + ... + 733902.

Almost surely, 2228928908 is an apocalyptic number.

It is an amenable number.

228928908 is an abundant number, since it is smaller than the sum of its proper divisors (346328740).

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

228928908 is a wasteful number, since it uses less digits than its factorization.

228928908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467513 (or 1467511 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 228928908 is about 15130.3968222912. The cubic root of 228928908 is about 611.7400001995.

The spelling of 228928908 in words is "two hundred twenty-eight million, nine hundred twenty-eight thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1467493 2934986 4402479 5869972 8804958 17609916 19077409 38154818 57232227 76309636 114464454 228928908