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72056914 = 2175773673
BaseRepresentation
bin1000100101110…
…00000001010010
312000120212111121
410102320001102
5121421310124
611052232454
71533321316
oct422700122
9160525447
1072056914
1137746476
122016b72a
1311c0bb37
1497d9b46
1564d52e4
hex44b8052

72056914 has 16 divisors (see below), whose sum is σ = 114672888. Its totient is φ = 33841152.

The previous prime is 72056899. The next prime is 72056917. The reversal of 72056914 is 41965027.

It can be written as a sum of positive squares in 4 ways, for example, as 70274689 + 1782225 = 8383^2 + 1335^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 72056914.

It is not an unprimeable number, because it can be changed into a prime (72056917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17782 + ... + 21454.

Almost surely, 272056914 is an apocalyptic number.

72056914 is a deficient number, since it is larger than the sum of its proper divisors (42615974).

72056914 is a wasteful number, since it uses less digits than its factorization.

72056914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 72056914 is about 8488.6344013628. The cubic root of 72056914 is about 416.1263523056.

The spelling of 72056914 in words is "seventy-two million, fifty-six thousand, nine hundred fourteen".

Divisors: 1 2 17 34 577 1154 3673 7346 9809 19618 62441 124882 2119321 4238642 36028457 72056914