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51056272 = 243191017
BaseRepresentation
bin1100001011000…
…0111010010000
310120001221001001
43002300322100
5101032300042
65022151344
71156654051
oct302607220
9116057031
1051056272
1126902373
1215122554
13a768117
146ad0728
154737bb7
hex30b0e90

51056272 has 10 divisors (see below), whose sum is σ = 98921558. Its totient is φ = 25528128.

The previous prime is 51056267. The next prime is 51056281. The reversal of 51056272 is 27265015.

It can be written as a sum of positive squares in only one way, i.e., 36433296 + 14622976 = 6036^2 + 3824^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51056272.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1595493 + ... + 1595524.

Almost surely, 251056272 is an apocalyptic number.

It is an amenable number.

51056272 is a deficient number, since it is larger than the sum of its proper divisors (47865286).

51056272 is a wasteful number, since it uses less digits than its factorization.

51056272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191025 (or 3191019 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 51056272 is about 7145.3671704119. The cubic root of 51056272 is about 370.9793194470.

The spelling of 51056272 in words is "fifty-one million, fifty-six thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 3191017 6382034 12764068 25528136 51056272