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72626047 = 1341891531
BaseRepresentation
bin1000101010000…
…10111101111111
312001122210012121
410111002331333
5122043013142
611112343411
71541211514
oct425027577
9161583177
1072626047
1137aa502a
12203a4b67
131207abc0
14990730b
156598c67
hex4542f7f

72626047 has 16 divisors (see below), whose sum is σ = 81073440. Its totient is φ = 64627200.

The previous prime is 72626041. The next prime is 72626077. The reversal of 72626047 is 74062627.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72626047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72626041) 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, 46672 + ... + 48202.

It is an arithmetic number, because the mean of its divisors is an integer number (5067090).

Almost surely, 272626047 is an apocalyptic number.

72626047 is a deficient number, since it is larger than the sum of its proper divisors (8447393).

72626047 is a wasteful number, since it uses less digits than its factorization.

72626047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 72626047 is about 8522.0917033320. The cubic root of 72626047 is about 417.2190553743.

The spelling of 72626047 in words is "seventy-two million, six hundred twenty-six thousand, forty-seven".

Divisors: 1 13 41 89 533 1157 1531 3649 19903 47437 62771 136259 816023 1771367 5586619 72626047