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80814899 = 1121134819
BaseRepresentation
bin1001101000100…
…10001100110011
312122001211012102
410310102030303
5131142034044
612004051015
72000625644
oct464221463
9178054172
1080814899
1141688480
1223093a6b
1313987289
14aa396cb
15716524e
hex4d12333

80814899 has 8 divisors (see below), whose sum is σ = 88582080. Its totient is φ = 73117800.

The previous prime is 80814883. The next prime is 80814907. The reversal of 80814899 is 99841808.

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

It is a cyclic number.

It is not a de Polignac number, because 80814899 - 24 = 80814883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80814199) 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, 15089 + ... + 19730.

It is an arithmetic number, because the mean of its divisors is an integer number (11072760).

Almost surely, 280814899 is an apocalyptic number.

80814899 is a deficient number, since it is larger than the sum of its proper divisors (7767181).

80814899 is a wasteful number, since it uses less digits than its factorization.

80814899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35041.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 80814899 is about 8989.7107294951. The cubic root of 80814899 is about 432.3450372036.

The spelling of 80814899 in words is "eighty million, eight hundred fourteen thousand, eight hundred ninety-nine".

Divisors: 1 11 211 2321 34819 383009 7346809 80814899