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72983484 = 22337195081
BaseRepresentation
bin1000101100110…
…10001110111100
312002022221112000
410112122032330
5122140432414
611124142300
71544230560
oct426321674
9162287460
1072983484
1138219632
1220537990
13121747c2
14999b6a0
156619b09
hex459a3bc

72983484 has 96 divisors (see below), whose sum is σ = 227673600. Its totient is φ = 19751040.

The previous prime is 72983473. The next prime is 72983489. The reversal of 72983484 is 48438927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72983489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11824 + ... + 16904.

It is an arithmetic number, because the mean of its divisors is an integer number (2371600).

Almost surely, 272983484 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 72983484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113836800).

72983484 is an abundant number, since it is smaller than the sum of its proper divisors (154690116).

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

72983484 is a wasteful number, since it uses less digits than its factorization.

72983484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120 (or 5112 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 72983484 is about 8543.0371648495. The cubic root of 72983484 is about 417.9023985548.

The spelling of 72983484 in words is "seventy-two million, nine hundred eighty-three thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 19 21 27 28 36 38 42 54 57 63 76 84 108 114 126 133 171 189 228 252 266 342 378 399 513 532 684 756 798 1026 1197 1596 2052 2394 3591 4788 5081 7182 10162 14364 15243 20324 30486 35567 45729 60972 71134 91458 96539 106701 137187 142268 182916 193078 213402 274374 289617 320103 386156 426804 548748 579234 640206 675773 868851 960309 1158468 1280412 1351546 1737702 1920618 2027319 2606553 2703092 3475404 3841236 4054638 5213106 6081957 8109276 10426212 12163914 18245871 24327828 36491742 72983484