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82132079 = 194322741
BaseRepresentation
bin1001110010100…
…11110001101111
312201112202000212
410321103301233
5132011211304
612052213035
72015053061
oct471236157
9181482025
1082132079
11423a8057
122360a17b
1314028983
14ac9d731
15732566e
hex4e53c6f

82132079 has 4 divisors (see below), whose sum is σ = 86454840. Its totient is φ = 77809320.

The previous prime is 82132073. The next prime is 82132123. The reversal of 82132079 is 97023128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82132079 - 220 = 81083503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82132073) 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, 2161352 + ... + 2161389.

It is an arithmetic number, because the mean of its divisors is an integer number (21613710).

Almost surely, 282132079 is an apocalyptic number.

82132079 is a deficient number, since it is larger than the sum of its proper divisors (4322761).

82132079 is a wasteful number, since it uses less digits than its factorization.

82132079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322760.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 82132079 is about 9062.6750465853. The cubic root of 82132079 is about 434.6812814877.

The spelling of 82132079 in words is "eighty-two million, one hundred thirty-two thousand, seventy-nine".

Divisors: 1 19 4322741 82132079