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228130564 = 22280320347
BaseRepresentation
bin11011001100011…
…11111100000100
3120220021020022011
431212033330010
5431400134224
634345344004
75440035454
oct1546177404
9526236264
10228130564
11107856962
1264498004
13383563cc
1422425d64
1515064394
hexd98ff04

228130564 has 12 divisors (see below), whose sum is σ = 399390544. Its totient is φ = 114018984.

The previous prime is 228130547. The next prime is 228130579. The reversal of 228130564 is 465031822.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039 + ... + 21385.

Almost surely, 2228130564 is an apocalyptic number.

It is an amenable number.

228130564 is a deficient number, since it is larger than the sum of its proper divisors (171259980).

228130564 is a wasteful number, since it uses less digits than its factorization.

228130564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23154 (or 23152 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 228130564 is about 15103.9916578367. The cubic root of 228130564 is about 611.0280648166.

The spelling of 228130564 in words is "two hundred twenty-eight million, one hundred thirty thousand, five hundred sixty-four".

Divisors: 1 2 4 2803 5606 11212 20347 40694 81388 57032641 114065282 228130564