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80791368 = 23371313671
BaseRepresentation
bin1001101000011…
…00011101001000
312122000121220220
410310030131020
5131140310433
612003350040
72000500230
oct464143510
9178017826
1080791368
1141671829
1223082320
1313979658
14aa30cc0
15715d2b3
hex4d0c748

80791368 has 64 divisors (see below), whose sum is σ = 232657920. Its totient is φ = 22900800.

The previous prime is 80791351. The next prime is 80791379. The reversal of 80791368 is 86319708.

It is a super-2 number, since 2×807913682 = 13054490286622848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 15 ways as a sum of consecutive naturals, for example, 20173 + ... + 23843.

It is an arithmetic number, because the mean of its divisors is an integer number (3635280).

Almost surely, 280791368 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 80791368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116328960).

80791368 is an abundant number, since it is smaller than the sum of its proper divisors (151866552).

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

80791368 is a wasteful number, since it uses less digits than its factorization.

80791368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818 (or 3814 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 80791368 is about 8988.4018601751. The cubic root of 80791368 is about 432.3030709376.

The spelling of 80791368 in words is "eighty million, seven hundred ninety-one thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 131 168 262 393 524 786 917 1048 1572 1834 2751 3144 3668 3671 5502 7336 7342 11004 11013 14684 22008 22026 25697 29368 44052 51394 77091 88104 102788 154182 205576 308364 480901 616728 961802 1442703 1923604 2885406 3366307 3847208 5770812 6732614 10098921 11541624 13465228 20197842 26930456 40395684 80791368