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72076992 = 2631367431
BaseRepresentation
bin1000100101111…
…00111011000000
312000121220001020
410102330323000
5121422430432
611052505440
71533434001
oct422747300
9160556036
1072076992
113775a569
122017b280
1311c18010
1498031a8
1564db22c
hex44bcec0

72076992 has 112 divisors (see below), whose sum is σ = 208922112. Its totient is φ = 21795840.

The previous prime is 72076969. The next prime is 72077003. The reversal of 72076992 is 29967027.

It is a super-3 number, since 3×720769923 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167017 + ... + 167447.

It is an arithmetic number, because the mean of its divisors is an integer number (1865376).

Almost surely, 272076992 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 72076992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104461056).

72076992 is an abundant number, since it is smaller than the sum of its proper divisors (136845120).

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

72076992 is a wasteful number, since it uses less digits than its factorization.

72076992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 72076992 is about 8489.8169591576. The cubic root of 72076992 is about 416.1649986503.

The spelling of 72076992 in words is "seventy-two million, seventy-six thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 67 78 96 104 134 156 192 201 208 268 312 402 416 431 536 624 804 832 862 871 1072 1248 1293 1608 1724 1742 2144 2496 2586 2613 3216 3448 3484 4288 5172 5226 5603 6432 6896 6968 10344 10452 11206 12864 13792 13936 16809 20688 20904 22412 27584 27872 28877 33618 41376 41808 44824 55744 57754 67236 82752 83616 86631 89648 115508 134472 167232 173262 179296 231016 268944 346524 358592 375401 462032 537888 693048 750802 924064 1075776 1126203 1386096 1501604 1848128 2252406 2772192 3003208 4504812 5544384 6006416 9009624 12012832 18019248 24025664 36038496 72076992