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6426025 = 52401641
BaseRepresentation
bin11000100000110110101001
3110002110211221
4120200312221
53121113100
6345422041
7105422524
oct30406651
913073757
106426025
113699a71
12219a921
13143cba8
14bd3bbb
1586e01a
hex620da9

6426025 has 12 divisors (see below), whose sum is σ = 8000604. Its totient is φ = 5120000.

The previous prime is 6426019. The next prime is 6426041. The reversal of 6426025 is 5206246.

It can be written as a sum of positive squares in 6 ways, for example, as 1140624 + 5285401 = 1068^2 + 2299^2 .

It is not a de Polignac number, because 6426025 - 221 = 4328873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9705 + ... + 10345.

It is an arithmetic number, because the mean of its divisors is an integer number (666717).

Almost surely, 26426025 is an apocalyptic number.

It is an amenable number.

6426025 is a deficient number, since it is larger than the sum of its proper divisors (1574579).

6426025 is a wasteful number, since it uses less digits than its factorization.

6426025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6426025 is about 2534.9605519613. The cubic root of 6426025 is about 185.9148741388.

The spelling of 6426025 in words is "six million, four hundred twenty-six thousand, twenty-five".

Divisors: 1 5 25 401 641 2005 3205 10025 16025 257041 1285205 6426025