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228132582 = 23192001163
BaseRepresentation
bin11011001100100…
…00011011100110
3120220021100001220
431212100123212
5431400220312
634345401210
75440044366
oct1546203346
9526240056
10228132582
11107858427
1264499206
13383572c2
14224269a6
1515064c8c
hexd9906e6

228132582 has 16 divisors (see below), whose sum is σ = 480279360. Its totient is φ = 72041832.

The previous prime is 228132547. The next prime is 228132623. The reversal of 228132582 is 285231822.

228132582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1000468 + ... + 1000695.

It is an arithmetic number, because the mean of its divisors is an integer number (30017460).

Almost surely, 2228132582 is an apocalyptic number.

228132582 is an abundant number, since it is smaller than the sum of its proper divisors (252146778).

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

228132582 is a wasteful number, since it uses less digits than its factorization.

228132582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001187.

The product of its digits is 15360, while the sum is 33.

The square root of 228132582 is about 15104.0584612216. The cubic root of 228132582 is about 611.0298664911.

The spelling of 228132582 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, five hundred eighty-two".

Divisors: 1 2 3 6 19 38 57 114 2001163 4002326 6003489 12006978 38022097 76044194 114066291 228132582