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80912896 = 29236871
BaseRepresentation
bin1001101001010…
…10001000000000
312122020210121221
410310222020000
5131203203041
612010124424
72001514441
oct464521000
9178223557
1080912896
1141745069
1223120714
13139bca6c
14aa632c8
1571842d1
hex4d2a200

80912896 has 40 divisors (see below), whose sum is σ = 168721344. Its totient is φ = 38691840.

The previous prime is 80912893. The next prime is 80912903. The reversal of 80912896 is 69821908.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80912893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8341 + ... + 15211.

Almost surely, 280912896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80912896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84360672).

80912896 is an abundant number, since it is smaller than the sum of its proper divisors (87808448).

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

80912896 is an equidigital number, since it uses as much as digits as its factorization.

80912896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912 (or 6896 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 80912896 is about 8995.1595872447. The cubic root of 80912896 is about 432.5197220004.

The spelling of 80912896 in words is "eighty million, nine hundred twelve thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 23 32 46 64 92 128 184 256 368 512 736 1472 2944 5888 6871 11776 13742 27484 54968 109936 158033 219872 316066 439744 632132 879488 1264264 1758976 2528528 3517952 5057056 10114112 20228224 40456448 80912896