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53228164 = 221123149353
BaseRepresentation
bin1100101100001…
…1001010000100
310201011021022111
43023003022010
5102111300124
65140510404
71214301103
oct313031204
9121137274
1053228164
1128056120
12159ab404
13b048872
1470d803a
154a16494
hex32c3284

53228164 has 48 divisors (see below), whose sum is σ = 107049600. Its totient is φ = 22922240.

The previous prime is 53228129. The next prime is 53228167. The reversal of 53228164 is 46182235.

It is not an unprimeable number, because it can be changed into a prime (53228167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150612 + ... + 150964.

It is an arithmetic number, because the mean of its divisors is an integer number (2230200).

Almost surely, 253228164 is an apocalyptic number.

It is an amenable number.

53228164 is an abundant number, since it is smaller than the sum of its proper divisors (53821436).

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

53228164 is a wasteful number, since it uses less digits than its factorization.

53228164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 538 counting only the distinct ones).

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

The square root of 53228164 is about 7295.7634281821. The cubic root of 53228164 is about 376.1668284131.

The spelling of 53228164 in words is "fifty-three million, two hundred twenty-eight thousand, one hundred sixty-four".

Divisors: 1 2 4 11 22 23 44 46 92 149 253 298 353 506 596 706 1012 1412 1639 3278 3427 3883 6556 6854 7766 8119 13708 15532 16238 32476 37697 52597 75394 89309 105194 150788 178618 210388 357236 578567 1157134 1209731 2314268 2419462 4838924 13307041 26614082 53228164