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6413125 = 5431331
BaseRepresentation
bin11000011101101101000101
3110001211011011
4120131231011
53120210000
6345242221
7105340105
oct30355505
913054134
106413125
113690304
122193371
131437064
14bcd205
1586a2ba
hex61db45

6413125 has 20 divisors (see below), whose sum is σ = 8297344. Its totient is φ = 4950000.

The previous prime is 6413117. The next prime is 6413129. The reversal of 6413125 is 5213146.

It is not a de Polignac number, because 6413125 - 23 = 6413117 is a prime.

It is a super-2 number, since 2×64131252 = 82256344531250, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6413096 and 6413105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6413129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19210 + ... + 19540.

Almost surely, 26413125 is an apocalyptic number.

It is an amenable number.

6413125 is a deficient number, since it is larger than the sum of its proper divisors (1884219).

6413125 is an equidigital number, since it uses as much as digits as its factorization.

6413125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 367 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 6413125 is about 2532.4148554295. The cubic root of 6413125 is about 185.7903851272.

The spelling of 6413125 in words is "six million, four hundred thirteen thousand, one hundred twenty-five".

Divisors: 1 5 25 31 125 155 331 625 775 1655 3875 8275 10261 19375 41375 51305 206875 256525 1282625 6413125