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13537399989 = 34796009929
BaseRepresentation
bin11001001101110010…
…00101010010110101
31021221110000011122210
430212321011102311
5210211033244424
610115145244033
7656320000311
oct144671052265
937843004583
1013537399989
115817566a83
122759793619
131379820069
14925c98b41
15543706729
hex326e454b5

13537399989 has 8 divisors (see below), whose sum is σ = 18433906560. Its totient is φ = 8832913376.

The previous prime is 13537399987. The next prime is 13537400029. The reversal of 13537399989 is 98999373531.

It is a happy number.

13537399989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13537399989 - 21 = 13537399987 is a prime.

It is a super-3 number, since 3×135373999893 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13537399987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48004824 + ... + 48005105.

It is an arithmetic number, because the mean of its divisors is an integer number (2304238320).

Almost surely, 213537399989 is an apocalyptic number.

It is an amenable number.

13537399989 is a deficient number, since it is larger than the sum of its proper divisors (4896506571).

13537399989 is an equidigital number, since it uses as much as digits as its factorization.

13537399989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96009979.

The product of its digits is 49601160, while the sum is 66.

The spelling of 13537399989 in words is "thirteen billion, five hundred thirty-seven million, three hundred ninety-nine thousand, nine hundred eighty-nine".

Divisors: 1 3 47 141 96009929 288029787 4512466663 13537399989