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80674980 = 22351344583
BaseRepresentation
bin1001100111100…
…00000010100100
312121210201021020
410303300002210
5131123044410
612001051140
71666504011
oct463600244
9177721236
1080674980
11415a2341
1223026ab0
1313938699
14aa00708
157138a70
hex4cf00a4

80674980 has 24 divisors (see below), whose sum is σ = 225890112. Its totient is φ = 21513312.

The previous prime is 80674963. The next prime is 80674981. The reversal of 80674980 is 8947608.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80674981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672232 + ... + 672351.

It is an arithmetic number, because the mean of its divisors is an integer number (9412088).

Almost surely, 280674980 is an apocalyptic number.

It is an amenable number.

80674980 is an abundant number, since it is smaller than the sum of its proper divisors (145215132).

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

80674980 is a wasteful number, since it uses less digits than its factorization.

80674980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344595 (or 1344593 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 80674980 is about 8981.9251833891. The cubic root of 80674980 is about 432.0953793173.

The spelling of 80674980 in words is "eighty million, six hundred seventy-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1344583 2689166 4033749 5378332 6722915 8067498 13445830 16134996 20168745 26891660 40337490 80674980