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80935677 = 32191197239
BaseRepresentation
bin1001101001011…
…11101011111101
312122021221212200
410310233223331
5131204420202
612010422113
72001641034
oct464575375
9178257780
1080935677
1141760199
1223131939
13139ca244
14aa6b71b
15718ae1c
hex4d2fafd

80935677 has 24 divisors (see below), whose sum is σ = 118609920. Its totient is φ = 53178720.

The previous prime is 80935667. The next prime is 80935697. The reversal of 80935677 is 77653908.

It is a happy number.

80935677 is a `hidden beast` number, since 80 + 9 + 3 + 567 + 7 = 666.

It is not a de Polignac number, because 80935677 - 210 = 80934653 is a prime.

It is a super-2 number, since 2×809356772 = 13101167622896658, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80935667) 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, 338524 + ... + 338762.

It is an arithmetic number, because the mean of its divisors is an integer number (4942080).

Almost surely, 280935677 is an apocalyptic number.

It is an amenable number.

80935677 is a deficient number, since it is larger than the sum of its proper divisors (37674243).

80935677 is a wasteful number, since it uses less digits than its factorization.

80935677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 80935677 is about 8996.4257902792. The cubic root of 80935677 is about 432.5603101213.

The spelling of 80935677 in words is "eighty million, nine hundred thirty-five thousand, six hundred seventy-seven".

Divisors: 1 3 9 191 197 239 573 591 717 1719 1773 2151 37627 45649 47083 112881 136947 141249 338643 410841 423747 8992853 26978559 80935677