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80851902 = 2313475317
BaseRepresentation
bin1001101000110…
…11001110111110
312122010200221220
410310123032332
5131144230102
612004534210
72001141555
oct464331676
9178120856
1080851902
114170325a
12230b1366
131399b081
14aa48d9c
1571711bc
hex4d1b3be

80851902 has 8 divisors (see below), whose sum is σ = 161703816. Its totient is φ = 26950632.

The previous prime is 80851843. The next prime is 80851907. The reversal of 80851902 is 20915808.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

80851902 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80851907) 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, 6737653 + ... + 6737664.

It is an arithmetic number, because the mean of its divisors is an integer number (20212977).

Almost surely, 280851902 is an apocalyptic number.

80851902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80851902 is a wasteful number, since it uses less digits than its factorization.

80851902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13475322.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 80851902 is about 8991.7685690858. The cubic root of 80851902 is about 432.4110135790.

The spelling of 80851902 in words is "eighty million, eight hundred fifty-one thousand, nine hundred two".

Divisors: 1 2 3 6 13475317 26950634 40425951 80851902