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13537312152 = 233713531071093
BaseRepresentation
bin11001001101110001…
…01111110110011000
31021221102211201011120
430212320233312120
5210211022442102
610115143325240
7656316153240
oct144670576630
937842751146
1013537312152
115817506a91
122759750820
1313797bc0a0
14925c74b20
155436da6bc
hex326e2fd98

13537312152 has 256 divisors, whose sum is σ = 42874997760. Its totient is φ = 3467003904.

The previous prime is 13537312141. The next prime is 13537312153. The reversal of 13537312152 is 25121373531.

It is a super-2 number, since 2×135373121522 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13537312153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12384918 + ... + 12386010.

It is an arithmetic number, because the mean of its divisors is an integer number (167480460).

Almost surely, 213537312152 is an apocalyptic number.

13537312152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13537312152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21437498880).

13537312152 is an abundant number, since it is smaller than the sum of its proper divisors (29337685608).

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

13537312152 is a wasteful number, since it uses less digits than its factorization.

13537312152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1278 counting only the distinct ones).

The product of its digits is 18900, while the sum is 33.

Adding to 13537312152 its reverse (25121373531), we get a palindrome (38658685683).

The spelling of 13537312152 in words is "thirteen billion, five hundred thirty-seven million, three hundred twelve thousand, one hundred fifty-two".