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80795431 = 82198411
BaseRepresentation
bin1001101000011…
…01011100100111
312122000211111101
410310031130213
5131140423211
612003420531
72000515123
oct464153447
9178024441
1080795431
1141674892
1223084747
131397b462
14aa32583
15715e5c1
hex4d0d727

80795431 has 4 divisors (see below), whose sum is σ = 80894664. Its totient is φ = 80696200.

The previous prime is 80795423. The next prime is 80795447. The reversal of 80795431 is 13459708.

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 80795431 - 23 = 80795423 is a prime.

It is a super-2 number, since 2×807954312 = 13055803340951522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80795401) 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, 48385 + ... + 50026.

It is an arithmetic number, because the mean of its divisors is an integer number (20223666).

Almost surely, 280795431 is an apocalyptic number.

80795431 is a deficient number, since it is larger than the sum of its proper divisors (99233).

80795431 is an equidigital number, since it uses as much as digits as its factorization.

80795431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99232.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 80795431 is about 8988.6278708154. The cubic root of 80795431 is about 432.3103176604.

The spelling of 80795431 in words is "eighty million, seven hundred ninety-five thousand, four hundred thirty-one".

Divisors: 1 821 98411 80795431