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228317607 = 327373961
BaseRepresentation
bin11011001101111…
…01100110100111
3120220121201212200
431212331212213
5431422130412
634353345543
75441445000
oct1546754647
9526551780
10228317607
11107974441
12645682b3
13383c059b
14224741a7
151509e9dc
hexd9bd9a7

228317607 has 24 divisors (see below), whose sum is σ = 384602400. Its totient is φ = 130465440.

The previous prime is 228317597. The next prime is 228317627. The reversal of 228317607 is 706713822.

It is not a de Polignac number, because 228317607 - 24 = 228317591 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228317627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33894 + ... + 40067.

It is an arithmetic number, because the mean of its divisors is an integer number (16025100).

Almost surely, 2228317607 is an apocalyptic number.

228317607 is a deficient number, since it is larger than the sum of its proper divisors (156284793).

228317607 is an equidigital number, since it uses as much as digits as its factorization.

228317607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73988 (or 73971 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 228317607 is about 15110.1822292122. The cubic root of 228317607 is about 611.1950120532.

The spelling of 228317607 in words is "two hundred twenty-eight million, three hundred seventeen thousand, six hundred seven".

Divisors: 1 3 7 9 21 49 63 147 343 441 1029 3087 73961 221883 517727 665649 1553181 3624089 4659543 10872267 25368623 32616801 76105869 228317607