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79225 = 523169
BaseRepresentation
bin10011010101111001
311000200021
4103111321
510013400
61410441
7446656
oct232571
9130607
1079225
1154583
1239a21
132a0a3
1420c2d
151871a
hex13579

79225 has 6 divisors (see below), whose sum is σ = 98270. Its totient is φ = 63360.

The previous prime is 79201. The next prime is 79229. The reversal of 79225 is 52297.

It can be written as a sum of positive squares in 3 ways, for example, as 13689 + 65536 = 117^2 + 256^2 .

It is not a de Polignac number, because 79225 - 25 = 79193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 3169 = 79225 / (7 + 9 + 2 + 2 + 5).

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 79225.

It is not an unprimeable number, because it can be changed into a prime (79229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1560 + ... + 1609.

279225 is an apocalyptic number.

It is an amenable number.

79225 is a deficient number, since it is larger than the sum of its proper divisors (19045).

79225 is a wasteful number, since it uses less digits than its factorization.

79225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179 (or 3174 counting only the distinct ones).

The product of its digits is 1260, while the sum is 25.

The square root of 79225 is about 281.4693589008. The cubic root of 79225 is about 42.9491014849.

The spelling of 79225 in words is "seventy-nine thousand, two hundred twenty-five".

Divisors: 1 5 25 3169 15845 79225