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80808966 = 2327837727
BaseRepresentation
bin1001101000100…
…00110000000110
312122001112001200
410310100300012
5131141341331
612004003330
72000602440
oct464206006
9178045050
1080808966
1141683a77
1223090546
1313984674
14aa37490
1571635e6
hex4d10c06

80808966 has 48 divisors (see below), whose sum is σ = 202535424. Its totient is φ = 22807152.

The previous prime is 80808961. The next prime is 80808967. The reversal of 80808966 is 66980808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80808961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6595 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (4219488).

Almost surely, 280808966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80808966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101267712).

80808966 is an abundant number, since it is smaller than the sum of its proper divisors (121726458).

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

80808966 is a wasteful number, since it uses less digits than its factorization.

80808966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825 (or 7822 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 80808966 is about 8989.3807350673. The cubic root of 80808966 is about 432.3344567871.

The spelling of 80808966 in words is "eighty million, eight hundred eight thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 83 126 166 249 498 581 747 1162 1494 1743 3486 5229 7727 10458 15454 23181 46362 54089 69543 108178 139086 162267 324534 486801 641341 973602 1282682 1924023 3848046 4489387 5772069 8978774 11544138 13468161 26936322 40404483 80808966