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6425105 = 51285021
BaseRepresentation
bin11000100000101000010001
3110002102120212
4120200220101
53121100410
6345413505
7105420041
oct30405021
913072525
106425105
113699305
12219a295
13143c64b
14bd3721
1586db05
hex620a11

6425105 has 4 divisors (see below), whose sum is σ = 7710132. Its totient is φ = 5140080.

The previous prime is 6425101. The next prime is 6425117. The reversal of 6425105 is 5015246.

6425105 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3411409 + 3013696 = 1847^2 + 1736^2 .

It is not a de Polignac number, because 6425105 - 22 = 6425101 is a prime.

It is a super-2 number, since 2×64251052 = 82563948522050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6425101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642506 + ... + 642515.

It is an arithmetic number, because the mean of its divisors is an integer number (1927533).

Almost surely, 26425105 is an apocalyptic number.

It is an amenable number.

6425105 is a deficient number, since it is larger than the sum of its proper divisors (1285027).

6425105 is a wasteful number, since it uses less digits than its factorization.

6425105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285026.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 6425105 is about 2534.7790830761. The cubic root of 6425105 is about 185.9060013729.

The spelling of 6425105 in words is "six million, four hundred twenty-five thousand, one hundred five".

Divisors: 1 5 1285021 6425105