Search a number
-
+
13387485129 = 331143951453
BaseRepresentation
bin11000111011111010…
…01100111111001001
31021112222220201010120
430131331030333021
5204404144011004
610052232133453
7652516513614
oct143575147711
937488821116
1013387485129
11574a9827a7
122717537289
131354750b45
1490ddd317b
155354923d9
hex31df4cfc9

13387485129 has 8 divisors (see below), whose sum is σ = 18425786112. Its totient is φ = 8637087120.

The previous prime is 13387485121. The next prime is 13387485131. The reversal of 13387485129 is 92158478331.

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

It is not a de Polignac number, because 13387485129 - 23 = 13387485121 is a prime.

It is a super-2 number, since 2×133874851292 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13387485121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71975634 + ... + 71975819.

It is an arithmetic number, because the mean of its divisors is an integer number (2303223264).

Almost surely, 213387485129 is an apocalyptic number.

It is an amenable number.

13387485129 is a deficient number, since it is larger than the sum of its proper divisors (5038300983).

13387485129 is a wasteful number, since it uses less digits than its factorization.

13387485129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143951487.

The product of its digits is 1451520, while the sum is 51.

The spelling of 13387485129 in words is "thirteen billion, three hundred eighty-seven million, four hundred eighty-five thousand, one hundred twenty-nine".

Divisors: 1 3 31 93 143951453 431854359 4462495043 13387485129