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20056272 = 243417839
BaseRepresentation
bin100110010000…
…0100011010000
31101201222000220
41030200203100
520113300042
61553513040
7332322045
oct114404320
941658026
1020056272
1110359635
126872780
134202c22
1429411cc
151b628ec
hex13208d0

20056272 has 20 divisors (see below), whose sum is σ = 51812160. Its totient is φ = 6685408.

The previous prime is 20056259. The next prime is 20056291. The reversal of 20056272 is 27265002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 208872 + ... + 208967.

It is an arithmetic number, because the mean of its divisors is an integer number (2590608).

Almost surely, 220056272 is an apocalyptic number.

It is an amenable number.

20056272 is an abundant number, since it is smaller than the sum of its proper divisors (31755888).

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

20056272 is a wasteful number, since it uses less digits than its factorization.

20056272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417850 (or 417844 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20056272 is about 4478.4229367044. The cubic root of 20056272 is about 271.6960994537.

The spelling of 20056272 in words is "twenty million, fifty-six thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 417839 835678 1253517 1671356 2507034 3342712 5014068 6685424 10028136 20056272