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7039225 = 522711039
BaseRepresentation
bin11010110110100011111001
3111020122000001
4122312203321
53300223400
6410513001
7113555344
oct32664371
914218001
107039225
113a78746
122435761
1315c602b
14d1345b
15940a6a
hex6b68f9

7039225 has 12 divisors (see below), whose sum is σ = 8769280. Its totient is φ = 5605200.

The previous prime is 7039223. The next prime is 7039243. The reversal of 7039225 is 5229307.

It is not a de Polignac number, because 7039225 - 21 = 7039223 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

7039225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7039193 and 7039202.

It is not an unprimeable number, because it can be changed into a prime (7039223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6256 + ... + 7294.

Almost surely, 27039225 is an apocalyptic number.

It is an amenable number.

7039225 is a deficient number, since it is larger than the sum of its proper divisors (1730055).

7039225 is a wasteful number, since it uses less digits than its factorization.

7039225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1315 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 7039225 is about 2653.1537837072. The cubic root of 7039225 is about 191.6497611638.

The spelling of 7039225 in words is "seven million, thirty-nine thousand, two hundred twenty-five".

Divisors: 1 5 25 271 1039 1355 5195 6775 25975 281569 1407845 7039225