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72480604 = 22723179151
BaseRepresentation
bin1000101000111…
…11011101011100
312001101101200211
410110133131130
5122023334404
611105302204
71540034500
oct424373534
9161341624
1072480604
1137a05829
1220334964
1312029941
1498aa300
15656ab04
hex451f75c

72480604 has 72 divisors (see below), whose sum is σ = 155258880. Its totient is φ = 29484000.

The previous prime is 72480601. The next prime is 72480607. The reversal of 72480604 is 40608427.

It is an interprime number because it is at equal distance from previous prime (72480601) and next prime (72480607).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72480601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479929 + ... + 480079.

Almost surely, 272480604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72480604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77629440).

72480604 is an abundant number, since it is smaller than the sum of its proper divisors (82778276).

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

72480604 is a wasteful number, since it uses less digits than its factorization.

72480604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 72480604 is about 8513.5541344376. The cubic root of 72480604 is about 416.9403576422.

The spelling of 72480604 in words is "seventy-two million, four hundred eighty thousand, six hundred four".

Divisors: 1 2 4 7 14 28 31 49 62 79 98 124 151 158 196 217 302 316 434 553 604 868 1057 1106 1519 2114 2212 2449 3038 3871 4228 4681 4898 6076 7399 7742 9362 9796 11929 14798 15484 17143 18724 23858 29596 32767 34286 47716 65534 68572 83503 120001 131068 167006 229369 240002 334012 369799 458738 480004 584521 739598 917476 1169042 1479196 2338084 2588593 5177186 10354372 18120151 36240302 72480604