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80989184 = 210139569
BaseRepresentation
bin1001101001111…
…00110000000000
312122101200021102
410310330300000
5131213123214
612011513532
72002253033
oct464746000
9178350242
1080989184
1141797411
12231588a8
1313a186c3
14aa8301a
15719bbde
hex4d3cc00

80989184 has 44 divisors (see below), whose sum is σ = 163350600. Its totient is φ = 40132608.

The previous prime is 80989171. The next prime is 80989217. The reversal of 80989184 is 48198908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142052 + ... + 142620.

Almost surely, 280989184 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 80989184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81675300).

80989184 is an abundant number, since it is smaller than the sum of its proper divisors (82361416).

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

80989184 is a wasteful number, since it uses less digits than its factorization.

80989184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 80989184 is about 8999.3990910505. The cubic root of 80989184 is about 432.6556117518.

The spelling of 80989184 in words is "eighty million, nine hundred eighty-nine thousand, one hundred eighty-four".

Divisors: 1 2 4 8 16 32 64 128 139 256 278 512 556 569 1024 1112 1138 2224 2276 4448 4552 8896 9104 17792 18208 35584 36416 71168 72832 79091 142336 145664 158182 291328 316364 582656 632728 1265456 2530912 5061824 10123648 20247296 40494592 80989184