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80897232 = 24313129643
BaseRepresentation
bin1001101001001…
…10010011010000
312122020000010210
410310212103100
5131202202412
612005524120
72001420663
oct464462320
9178200123
1080897232
1141734319
1223113640
13139b58b0
14aa5b6da
15717e83c
hex4d264d0

80897232 has 40 divisors (see below), whose sum is σ = 225061984. Its totient is φ = 24891264.

The previous prime is 80897221. The next prime is 80897251. The reversal of 80897232 is 23279808.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64198 + ... + 65445.

Almost surely, 280897232 is an apocalyptic number.

It is an amenable number.

80897232 is an abundant number, since it is smaller than the sum of its proper divisors (144164752).

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

80897232 is a wasteful number, since it uses less digits than its factorization.

80897232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129667 (or 129661 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 80897232 is about 8994.2888546010. The cubic root of 80897232 is about 432.4918095724.

The spelling of 80897232 in words is "eighty million, eight hundred ninety-seven thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 129643 259286 388929 518572 777858 1037144 1555716 1685359 2074288 3111432 3370718 5056077 6222864 6741436 10112154 13482872 20224308 26965744 40448616 80897232