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80974976 = 273120407
BaseRepresentation
bin1001101001110…
…01010010000000
312122100221210012
410310321102000
5131212144401
612011324052
72002163435
oct464712200
9178327705
1080974976
1141787775
1223150628
1313a120b4
14aa7bb8c
1571978bb
hex4d39480

80974976 has 32 divisors (see below), whose sum is σ = 166529280. Its totient is φ = 39179520.

The previous prime is 80974969. The next prime is 80974991. The reversal of 80974976 is 67947908.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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, 6236 + ... + 14171.

It is an arithmetic number, because the mean of its divisors is an integer number (5204040).

Almost surely, 280974976 is an apocalyptic number.

It is an amenable number.

80974976 is an abundant number, since it is smaller than the sum of its proper divisors (85554304).

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

80974976 is a wasteful number, since it uses less digits than its factorization.

80974976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20452 (or 20440 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 80974976 is about 8998.6096703880. The cubic root of 80974976 is about 432.6303098941.

The spelling of 80974976 in words is "eighty million, nine hundred seventy-four thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 31 32 62 64 124 128 248 496 992 1984 3968 20407 40814 81628 163256 326512 632617 653024 1265234 1306048 2530468 2612096 5060936 10121872 20243744 40487488 80974976