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80854312 = 237211171103
BaseRepresentation
bin1001101000110…
…11110100101000
312122010211021011
410310123310220
5131144314222
612004553304
72001151600
oct464336450
9178124234
1080854312
1141705050
12230b2834
131399c1b6
14aa49c00
157171c77
hex4d1bd28

80854312 has 96 divisors (see below), whose sum is σ = 203886720. Its totient is φ = 29621760.

The previous prime is 80854273. The next prime is 80854343. The reversal of 80854312 is 21345808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72753 + ... + 73855.

It is an arithmetic number, because the mean of its divisors is an integer number (2123820).

Almost surely, 280854312 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 80854312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101943360).

80854312 is an abundant number, since it is smaller than the sum of its proper divisors (123032408).

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

80854312 is a wasteful number, since it uses less digits than its factorization.

80854312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 80854312 is about 8991.9025795434. The cubic root of 80854312 is about 432.4153099124.

The spelling of 80854312 in words is "eighty million, eight hundred fifty-four thousand, three hundred twelve".

Divisors: 1 2 4 7 8 11 14 17 22 28 34 44 49 56 68 77 88 98 119 136 154 187 196 238 308 374 392 476 539 616 748 833 952 1078 1103 1309 1496 1666 2156 2206 2618 3332 4312 4412 5236 6664 7721 8824 9163 10472 12133 15442 18326 18751 24266 30884 36652 37502 48532 54047 61768 73304 75004 84931 97064 108094 131257 150008 169862 206261 216188 262514 339724 412522 432376 525028 594517 679448 825044 918799 1050056 1189034 1443827 1650088 1837598 2378068 2887654 3675196 4756136 5775308 7350392 10106789 11550616 20213578 40427156 80854312