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80835079 = 136218083
BaseRepresentation
bin1001101000101…
…11001000000111
312122002211212211
410310113020013
5131143210304
612004324251
72001041533
oct464271007
9178084784
1080835079
11416a1656
12230a3687
1313993510
14aa42bc3
15716b204
hex4d17207

80835079 has 4 divisors (see below), whose sum is σ = 87053176. Its totient is φ = 74616984.

The previous prime is 80835049. The next prime is 80835089. The reversal of 80835079 is 97053808.

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

It is not a de Polignac number, because 80835079 - 211 = 80833031 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 (80835049) 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, 3109029 + ... + 3109054.

It is an arithmetic number, because the mean of its divisors is an integer number (21763294).

Almost surely, 280835079 is an apocalyptic number.

80835079 is a deficient number, since it is larger than the sum of its proper divisors (6218097).

80835079 is a wasteful number, since it uses less digits than its factorization.

80835079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218096.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 80835079 is about 8990.8330537276. The cubic root of 80835079 is about 432.3810206541.

The spelling of 80835079 in words is "eighty million, eight hundred thirty-five thousand, seventy-nine".

Divisors: 1 13 6218083 80835079