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6221125 = 53157317
BaseRepresentation
bin10111101110110101000101
3102201001210001
4113232311011
53043034000
6341201301
7103610251
oct27566505
912631701
106221125
11356a029
122100231
13139a851
14b7d261
1582d46a
hex5eed45

6221125 has 16 divisors (see below), whose sum is σ = 7838064. Its totient is φ = 4929600.

The previous prime is 6221123. The next prime is 6221147. The reversal of 6221125 is 5211226.

It can be written as a sum of positive squares in 8 ways, for example, as 4322241 + 1898884 = 2079^2 + 1378^2 .

It is not a de Polignac number, because 6221125 - 21 = 6221123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19467 + ... + 19783.

It is an arithmetic number, because the mean of its divisors is an integer number (489879).

Almost surely, 26221125 is an apocalyptic number.

It is an amenable number.

6221125 is a deficient number, since it is larger than the sum of its proper divisors (1616939).

6221125 is a wasteful number, since it uses less digits than its factorization.

6221125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 479 counting only the distinct ones).

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

The square root of 6221125 is about 2494.2183144224. The cubic root of 6221125 is about 183.9174665294.

The spelling of 6221125 in words is "six million, two hundred twenty-one thousand, one hundred twenty-five".

Divisors: 1 5 25 125 157 317 785 1585 3925 7925 19625 39625 49769 248845 1244225 6221125