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80065804 = 227313672
BaseRepresentation
bin1001100010110…
…11010100001100
312120122202122011
410301123110030
5130444101204
611540031004
71661356000
oct461332414
9176582564
1080065804
1141216695
1222992464
1313784320
14a8c2700
157068304
hex4c5b50c

80065804 has 72 divisors (see below), whose sum is σ = 178634400. Its totient is φ = 31201632.

The previous prime is 80065771. The next prime is 80065813. The reversal of 80065804 is 40856008.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1194979 + ... + 1195045.

Almost surely, 280065804 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 80065804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89317200).

80065804 is an abundant number, since it is smaller than the sum of its proper divisors (98568596).

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

80065804 is a wasteful number, since it uses less digits than its factorization.

80065804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 89 counting only the distinct ones).

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

The square root of 80065804 is about 8947.9497092910. The cubic root of 80065804 is about 431.0050476456.

The spelling of 80065804 in words is "eighty million, sixty-five thousand, eight hundred four".

Divisors: 1 2 4 7 13 14 26 28 49 52 67 91 98 134 182 196 268 343 364 469 637 686 871 938 1274 1372 1742 1876 2548 3283 3484 4459 4489 6097 6566 8918 8978 12194 13132 17836 17956 22981 24388 31423 42679 45962 58357 62846 85358 91924 116714 125692 170716 219961 233428 298753 408499 439922 597506 816998 879844 1195012 1539727 1633996 2859493 3079454 5718986 6158908 11437972 20016451 40032902 80065804