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72286704 = 2432771713
BaseRepresentation
bin1000100111100…
…00000111110000
312001000112201100
410103300013300
5122001133304
611101204400
71535266260
oct423600760
9161015640
1072286704
1137893086
1220260700
1311c8c5c9
1498597a0
15652d439
hex44f01f0

72286704 has 60 divisors (see below), whose sum is σ = 231205936. Its totient is φ = 20653056.

The previous prime is 72286691. The next prime is 72286727. The reversal of 72286704 is 40768227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34849 + ... + 36864.

Almost surely, 272286704 is an apocalyptic number.

It is an amenable number.

72286704 is an abundant number, since it is smaller than the sum of its proper divisors (158919232).

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

72286704 is a wasteful number, since it uses less digits than its factorization.

72286704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71734 (or 71725 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 72286704 is about 8502.1587846852. The cubic root of 72286704 is about 416.5682262023.

The spelling of 72286704 in words is "seventy-two million, two hundred eighty-six thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 71713 143426 215139 286852 430278 501991 573704 645417 860556 1003982 1147408 1290834 1505973 1721112 2007964 2581668 3011946 3442224 4015928 4517919 5163336 6023892 8031856 9035838 10326672 12047784 18071676 24095568 36143352 72286704