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80695273 = 425918947
BaseRepresentation
bin1001100111101…
…00111111101001
312121211202002211
410303310333221
5131124222043
612001325121
71666620121
oct463647751
9177752084
1080695273
114160660a
12230367a1
13139449a9
14aa07c81
15713ea9d
hex4cf4fe9

80695273 has 4 divisors (see below), whose sum is σ = 80718480. Its totient is φ = 80672068.

The previous prime is 80695259. The next prime is 80695283. The reversal of 80695273 is 37259608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80695273 - 213 = 80687081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80695213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215 + ... + 13732.

It is an arithmetic number, because the mean of its divisors is an integer number (20179620).

Almost surely, 280695273 is an apocalyptic number.

It is an amenable number.

80695273 is a deficient number, since it is larger than the sum of its proper divisors (23207).

80695273 is a wasteful number, since it uses less digits than its factorization.

80695273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23206.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 80695273 is about 8983.0547699544. The cubic root of 80695273 is about 432.1316060650.

The spelling of 80695273 in words is "eighty million, six hundred ninety-five thousand, two hundred seventy-three".

Divisors: 1 4259 18947 80695273