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6121225 = 521122259
BaseRepresentation
bin10111010110011100001001
3102111222202001
4113112130021
53031334400
6335111001
7103013065
oct27263411
912458661
106121225
113500a70
122072461
131364236
14b54aa5
1580da6a
hex5d6709

6121225 has 12 divisors (see below), whose sum is σ = 8280720. Its totient is φ = 4451600.

The previous prime is 6121223. The next prime is 6121231. The reversal of 6121225 is 5221216.

It is not a de Polignac number, because 6121225 - 21 = 6121223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6121223) 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, 10855 + ... + 11404.

It is an arithmetic number, because the mean of its divisors is an integer number (690060).

Almost surely, 26121225 is an apocalyptic number.

It is an amenable number.

6121225 is a deficient number, since it is larger than the sum of its proper divisors (2159495).

6121225 is a wasteful number, since it uses less digits than its factorization.

6121225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22280 (or 22275 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 6121225 is about 2474.1109514329. The cubic root of 6121225 is about 182.9276889896.

Subtracting from 6121225 its reverse (5221216), we obtain a palindrome (900009).

It can be divided in two parts, 612 and 1225, that multiplied together give a triangular number (749700 = T1224).

The spelling of 6121225 in words is "six million, one hundred twenty-one thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 275 22259 111295 244849 556475 1224245 6121225