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5115231252 = 22321714295849
BaseRepresentation
bin1001100001110010…
…00011110000010100
3111012111012200010100
410300321003300110
540433444400002
62203325054100
7240521514435
oct46071036024
914174180110
105115231252
112195461a4a
12ba90b7330
136369a6071
143674d948c
151ee11911c
hex130e43c14

5115231252 has 72 divisors (see below), whose sum is σ = 13702689000. Its totient is φ = 1603381248.

The previous prime is 5115231221. The next prime is 5115231259. The reversal of 5115231252 is 2521325115.

5115231252 is a `hidden beast` number, since 5 + 11 + 523 + 125 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 194769936 + 4920461316 = 13956^2 + 70146^2 .

It is a super-2 number, since 2×51152312522 = 52331181522874975008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115231259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 871624 + ... + 877472.

It is an arithmetic number, because the mean of its divisors is an integer number (190315125).

Almost surely, 25115231252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5115231252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6851344500).

5115231252 is an abundant number, since it is smaller than the sum of its proper divisors (8587457748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5115231252 is a wasteful number, since it uses less digits than its factorization.

5115231252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7305 (or 7300 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 5115231252 is about 71520.8448775600. The cubic root of 5115231252 is about 1723.0124839277.

Adding to 5115231252 its reverse (2521325115), we get a palindrome (7636556367).

The spelling of 5115231252 in words is "five billion, one hundred fifteen million, two hundred thirty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 1429 2858 4287 5716 5849 8574 11698 12861 17148 17547 23396 24293 25722 35094 48586 51444 52641 70188 72879 97172 99433 105282 145758 198866 210564 218637 291516 298299 397732 437274 596598 874548 894897 1193196 1789794 3579588 8358221 16716442 25074663 33432884 50149326 75223989 100298652 142089757 150447978 284179514 300895956 426269271 568359028 852538542 1278807813 1705077084 2557615626 5115231252