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72713460 = 22353173823
BaseRepresentation
bin1000101010110…
…00010011110100
312001211020010010
410111120103310
5122103312320
611114300220
71542024411
oct425302364
9161736103
1072713460
1138054776
1220427670
13120ab921
14992b108
1565b4ae0
hex45584f4

72713460 has 48 divisors (see below), whose sum is σ = 204293376. Its totient is φ = 19324032.

The previous prime is 72713441. The next prime is 72713467. The reversal of 72713460 is 6431727.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72713467) 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, 17109 + ... + 20931.

It is an arithmetic number, because the mean of its divisors is an integer number (4256112).

Almost surely, 272713460 is an apocalyptic number.

It is an amenable number.

72713460 is an abundant number, since it is smaller than the sum of its proper divisors (131579916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72713460 is a wasteful number, since it uses less digits than its factorization.

72713460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152 (or 4150 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 72713460 is about 8527.2187728473. The cubic root of 72713460 is about 417.3863771025.

It can be divided in two parts, 7271 and 3460, that added together give a triangular number (10731 = T146).

The spelling of 72713460 in words is "seventy-two million, seven hundred thirteen thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 317 634 951 1268 1585 1902 3170 3804 3823 4755 6340 7646 9510 11469 15292 19020 19115 22938 38230 45876 57345 76460 114690 229380 1211891 2423782 3635673 4847564 6059455 7271346 12118910 14542692 18178365 24237820 36356730 72713460