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72094653 = 3218144257
BaseRepresentation
bin1000100110000…
…01001110111101
312000122210021100
410103001032331
5121424012103
611053123313
71533536331
oct423011675
9160583240
1072094653
1137771864
1220189539
1311c23077
1498097c1
1564e15a3
hex44c13bd

72094653 has 12 divisors (see below), whose sum is σ = 104714428. Its totient is φ = 47796480.

The previous prime is 72094651. The next prime is 72094657. The reversal of 72094653 is 35649027.

It can be written as a sum of positive squares in 2 ways, for example, as 31606884 + 40487769 = 5622^2 + 6363^2 .

It is not a de Polignac number, because 72094653 - 21 = 72094651 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72094651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20500 + ... + 23757.

Almost surely, 272094653 is an apocalyptic number.

It is an amenable number.

72094653 is a deficient number, since it is larger than the sum of its proper divisors (32619775).

72094653 is a wasteful number, since it uses less digits than its factorization.

72094653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44444 (or 44441 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 72094653 is about 8490.8570238816. The cubic root of 72094653 is about 416.1989867955.

The spelling of 72094653 in words is "seventy-two million, ninety-four thousand, six hundred fifty-three".

Divisors: 1 3 9 181 543 1629 44257 132771 398313 8010517 24031551 72094653