Base | Representation |
---|---|
bin | 11001101110000011… |
… | …11001101011000100 |
3 | 1022122022110112221001 |
4 | 30313001321223010 |
5 | 211234341202030 |
6 | 10202100303044 |
7 | 666115212514 |
oct | 146701715304 |
9 | 38568415831 |
10 | 13808147140 |
11 | 5946380357 |
12 | 28143a1a84 |
13 | 13c0947c88 |
14 | 94dc15844 |
15 | 55c387cca |
hex | 337079ac4 |
13808147140 has 24 divisors (see below), whose sum is σ = 29035244952. Its totient is φ = 5515994880.
The previous prime is 13808147137. The next prime is 13808147149. The reversal of 13808147140 is 4174180831.
13808147140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 721244736 + 13086902404 = 26856^2 + 114398^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 13808147140.
It is not an unprimeable number, because it can be changed into a prime (13808147149) 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, 438399 + ... + 468838.
It is an arithmetic number, because the mean of its divisors is an integer number (1209801873).
Almost surely, 213808147140 is an apocalyptic number.
13808147140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13808147140 is an abundant number, since it is smaller than the sum of its proper divisors (15227097812).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13808147140 is a wasteful number, since it uses less digits than its factorization.
13808147140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 908007 (or 908005 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 37.
The spelling of 13808147140 in words is "thirteen billion, eight hundred eight million, one hundred forty-seven thousand, one hundred forty".
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