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7620325 = 52304813
BaseRepresentation
bin11101000100011011100101
3112100011010021
4131010123211
53422322300
6431155141
7121525456
oct35043345
915304107
107620325
114335299
122675ab1
13176a68b
14102512d
15a07d1a
hex7446e5

7620325 has 6 divisors (see below), whose sum is σ = 9449234. Its totient is φ = 6096240.

The previous prime is 7620323. The next prime is 7620329. The reversal of 7620325 is 5230267.

It can be written as a sum of positive squares in 3 ways, for example, as 101761 + 7518564 = 319^2 + 2742^2 .

It is not a de Polignac number, because 7620325 - 21 = 7620323 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: 304813 = 7620325 / (7 + 6 + 2 + 0 + 3 + 2 + 5).

It is a Duffinian number.

7620325 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7620325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620323) 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, 152382 + ... + 152431.

Almost surely, 27620325 is an apocalyptic number.

It is an amenable number.

7620325 is a deficient number, since it is larger than the sum of its proper divisors (1828909).

7620325 is a wasteful number, since it uses less digits than its factorization.

7620325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304823 (or 304818 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 7620325 is about 2760.4936152797. The cubic root of 7620325 is about 196.7846255230.

The spelling of 7620325 in words is "seven million, six hundred twenty thousand, three hundred twenty-five".

Divisors: 1 5 25 304813 1524065 7620325