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130211225 = 5210614909
BaseRepresentation
bin1111100001011…
…01110110011001
3100002000102012222
413300231312121
5231313224400
620530513425
73140530364
oct760556631
9302012188
10130211225
1167556691
1237735875
1320c90981
14134170db
15b671185
hex7c2dd99

130211225 has 12 divisors (see below), whose sum is σ = 161647020. Its totient is φ = 104049600.

The previous prime is 130211209. The next prime is 130211227. The reversal of 130211225 is 522112031.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10549504 + 119661721 = 3248^2 + 10939^2 .

It is not a de Polignac number, because 130211225 - 24 = 130211209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130211227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24071 + ... + 28979.

It is an arithmetic number, because the mean of its divisors is an integer number (13470585).

Almost surely, 2130211225 is an apocalyptic number.

It is an amenable number.

130211225 is a deficient number, since it is larger than the sum of its proper divisors (31435795).

130211225 is a wasteful number, since it uses less digits than its factorization.

130211225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980 (or 5975 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 130211225 is about 11411.0133204725. The cubic root of 130211225 is about 506.8539183128.

Adding to 130211225 its reverse (522112031), we get a palindrome (652323256).

The spelling of 130211225 in words is "one hundred thirty million, two hundred eleven thousand, two hundred twenty-five".

Divisors: 1 5 25 1061 4909 5305 24545 26525 122725 5208449 26042245 130211225