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72741625 = 531152903
BaseRepresentation
bin1000101010111…
…11001011111001
312001212122202021
410111133023321
5122110213000
611115034441
71542202465
oct425371371
9161778667
1072741625
1138073950
122043ba21
13120bb6a8
1499374a5
1565bd11a
hex455f2f9

72741625 has 16 divisors (see below), whose sum is σ = 99036288. Its totient is φ = 52902000.

The previous prime is 72741601. The next prime is 72741637. The reversal of 72741625 is 52614727.

It is not a de Polignac number, because 72741625 - 27 = 72741497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25077 + ... + 27826.

It is an arithmetic number, because the mean of its divisors is an integer number (6189768).

Almost surely, 272741625 is an apocalyptic number.

It is an amenable number.

72741625 is a deficient number, since it is larger than the sum of its proper divisors (26294663).

72741625 is a wasteful number, since it uses less digits than its factorization.

72741625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52929 (or 52919 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 72741625 is about 8528.8700892908. The cubic root of 72741625 is about 417.4402606147.

The spelling of 72741625 in words is "seventy-two million, seven hundred forty-one thousand, six hundred twenty-five".

Divisors: 1 5 11 25 55 125 275 1375 52903 264515 581933 1322575 2909665 6612875 14548325 72741625