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80897480 = 23519910163
BaseRepresentation
bin1001101001001…
…10010111001000
312122020000110222
410310212113020
5131202204410
612005525212
72001421466
oct464462710
9178200428
1080897480
1141734524
1223113808
13139b5a41
14aa5b836
15717e955
hex4d265c8

80897480 has 32 divisors (see below), whose sum is σ = 182952000. Its totient is φ = 32193216.

The previous prime is 80897473. The next prime is 80897483. The reversal of 80897480 is 8479808.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80897483) 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, 2879 + ... + 13041.

It is an arithmetic number, because the mean of its divisors is an integer number (5717250).

Almost surely, 280897480 is an apocalyptic number.

It is an amenable number.

80897480 is an abundant number, since it is smaller than the sum of its proper divisors (102054520).

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

80897480 is a wasteful number, since it uses less digits than its factorization.

80897480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10373 (or 10369 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 80897480 is about 8994.3026411168. The cubic root of 80897480 is about 432.4922515234.

The spelling of 80897480 in words is "eighty million, eight hundred ninety-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1592 1990 3980 7960 10163 20326 40652 50815 81304 101630 203260 406520 2022437 4044874 8089748 10112185 16179496 20224370 40448740 80897480