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6628025 = 522311527
BaseRepresentation
bin11001010010001010111001
3110110201221102
4121102022321
53144044100
6354021145
7110223455
oct31221271
913421842
106628025
113817808
1222777b5
1314b0b11
14c47665
158adcd5
hex6522b9

6628025 has 12 divisors (see below), whose sum is σ = 8576832. Its totient is φ = 5071440.

The previous prime is 6628007. The next prime is 6628033. The reversal of 6628025 is 5208266.

It is not a de Polignac number, because 6628025 - 210 = 6627001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5189 + ... + 6338.

It is an arithmetic number, because the mean of its divisors is an integer number (714736).

Almost surely, 26628025 is an apocalyptic number.

It is an amenable number.

6628025 is a deficient number, since it is larger than the sum of its proper divisors (1948807).

6628025 is a wasteful number, since it uses less digits than its factorization.

6628025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11560 (or 11555 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 6628025 is about 2574.4950961305. The cubic root of 6628025 is about 187.8428689322.

The spelling of 6628025 in words is "six million, six hundred twenty-eight thousand, twenty-five".

Divisors: 1 5 23 25 115 575 11527 57635 265121 288175 1325605 6628025