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72986368 = 287132241
BaseRepresentation
bin1000101100110…
…10111100000000
312002100002110211
410112122330000
5122141030433
611124203504
71544242150
oct426327400
9162302424
1072986368
1138220814
1220539594
1312175c00
14999c760
15661a8cd
hex459af00

72986368 has 108 divisors (see below), whose sum is σ = 181041168. Its totient is φ = 28753920.

The previous prime is 72986357. The next prime is 72986371. The reversal of 72986368 is 86368927.

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, 302728 + ... + 302968.

Almost surely, 272986368 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 72986368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90520584).

72986368 is an abundant number, since it is smaller than the sum of its proper divisors (108054800).

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

72986368 is a wasteful number, since it uses less digits than its factorization.

72986368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 263 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 72986368 is about 8543.2059556117. The cubic root of 72986368 is about 417.9079030634.

The spelling of 72986368 in words is "seventy-two million, nine hundred eighty-six thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 128 169 182 208 224 241 256 338 364 416 448 482 676 728 832 896 964 1183 1352 1456 1664 1687 1792 1928 2366 2704 2912 3133 3328 3374 3856 4732 5408 5824 6266 6748 7712 9464 10816 11648 12532 13496 15424 18928 21632 21931 23296 25064 26992 30848 37856 40729 43264 43862 50128 53984 61696 75712 81458 87724 100256 107968 151424 162916 175448 200512 215936 285103 302848 325832 350896 401024 431872 570206 651664 701792 802048 1140412 1303328 1403584 2280824 2606656 2807168 4561648 5213312 5614336 9123296 10426624 18246592 36493184 72986368