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228764084 = 221274011123
BaseRepresentation
bin11011010001010…
…10100110110100
3120221110102022212
431220222212310
5432030422314
634411112552
75445314453
oct1550524664
9527412285
10228764084
1110814992a
1264742758
1338518883
142254cb9a
151513be3e
hexda2a9b4

228764084 has 24 divisors (see below), whose sum is σ = 404855808. Its totient is φ = 113097600.

The previous prime is 228764071. The next prime is 228764089. The reversal of 228764084 is 480467822.

228764084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2287640842 = 104666012256718112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228764089) 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, 203147 + ... + 204269.

It is an arithmetic number, because the mean of its divisors is an integer number (16868992).

Almost surely, 2228764084 is an apocalyptic number.

It is an amenable number.

228764084 is a deficient number, since it is larger than the sum of its proper divisors (176091724).

228764084 is a wasteful number, since it uses less digits than its factorization.

228764084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 228764084 is about 15124.9490577655. The cubic root of 228764084 is about 611.5931516389.

The spelling of 228764084 in words is "two hundred twenty-eight million, seven hundred sixty-four thousand, eighty-four".

Divisors: 1 2 4 127 254 401 508 802 1123 1604 2246 4492 50927 101854 142621 203708 285242 450323 570484 900646 1801292 57191021 114382042 228764084