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80210139 = 332578209
BaseRepresentation
bin1001100011111…
…10100011011011
312120221002121220
410301332203123
5131013211024
611543103123
71662526542
oct461764333
9176832556
1080210139
1141305079
1222a41aa3
1313804c29
14a91d159
157095e79
hex4c7e8db

80210139 has 8 divisors (see below), whose sum is σ = 106992720. Its totient is φ = 53450496.

The previous prime is 80210111. The next prime is 80210167. The reversal of 80210139 is 93101208.

It is an interprime number because it is at equal distance from previous prime (80210111) and next prime (80210167).

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

It is not a de Polignac number, because 80210139 - 25 = 80210107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80210939) 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, 5667 + ... + 13875.

It is an arithmetic number, because the mean of its divisors is an integer number (13374090).

Almost surely, 280210139 is an apocalyptic number.

80210139 is a deficient number, since it is larger than the sum of its proper divisors (26782581).

80210139 is a wasteful number, since it uses less digits than its factorization.

80210139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 80210139 is about 8956.0113331773. The cubic root of 80210139 is about 431.2638837790.

The spelling of 80210139 in words is "eighty million, two hundred ten thousand, one hundred thirty-nine".

Divisors: 1 3 3257 8209 9771 24627 26736713 80210139