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56212272 = 2433130121
BaseRepresentation
bin1101011001101…
…1101100110000
310220202212202000
43112123230300
5103342243042
65324454000
71251540114
oct326335460
9126685660
1056212272
1129804126
12169aa300
13b851bcc
147673744
154e0574c
hex359bb30

56212272 has 40 divisors (see below), whose sum is σ = 161351280. Its totient is φ = 18737280.

The previous prime is 56212259. The next prime is 56212283. The reversal of 56212272 is 27221265.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 64629 + ... + 65492.

It is an arithmetic number, because the mean of its divisors is an integer number (4033782).

Almost surely, 256212272 is an apocalyptic number.

It is an amenable number.

56212272 is an abundant number, since it is smaller than the sum of its proper divisors (105139008).

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

56212272 is a wasteful number, since it uses less digits than its factorization.

56212272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130138 (or 130126 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 56212272 is about 7497.4843781098. The cubic root of 56212272 is about 383.0690338606.

The spelling of 56212272 in words is "fifty-six million, two hundred twelve thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 130121 260242 390363 520484 780726 1040968 1171089 1561452 2081936 2342178 3122904 3513267 4684356 6245808 7026534 9368712 14053068 18737424 28106136 56212272