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7425085 = 51485017
BaseRepresentation
bin11100010100110000111101
3111222020022011
4130110300331
53400100320
6423051221
7120053323
oct34246075
914866264
107425085
114211638
1225a0b11
1316cc855
14db3d13
159ba05a
hex714c3d

7425085 has 4 divisors (see below), whose sum is σ = 8910108. Its totient is φ = 5940064.

The previous prime is 7425083. The next prime is 7425133. The reversal of 7425085 is 5805247.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5225796 + 2199289 = 2286^2 + 1483^2 .

It is a cyclic number.

It is not a de Polignac number, because 7425085 - 21 = 7425083 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7425083) 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, 742504 + ... + 742513.

It is an arithmetic number, because the mean of its divisors is an integer number (2227527).

Almost surely, 27425085 is an apocalyptic number.

It is an amenable number.

7425085 is a deficient number, since it is larger than the sum of its proper divisors (1485023).

7425085 is a wasteful number, since it uses less digits than its factorization.

7425085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485022.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 7425085 is about 2724.9009156298. The cubic root of 7425085 is about 195.0894614712.

The spelling of 7425085 in words is "seven million, four hundred twenty-five thousand, eighty-five".

Divisors: 1 5 1485017 7425085