Base | Representation |
---|---|
bin | 1001001001111001000110… |
… | …01100111010001110011010 |
3 | 2122021111220010120112220102 |
4 | 10210330203030322032122 |
5 | 10114311444142200010 |
6 | 110452033431255402 |
7 | 4145265324143660 |
oct | 444744314721632 |
9 | 78244803515812 |
10 | 20131102303130 |
11 | 6461609484895 |
12 | 231166151a562 |
13 | b3047c664630 |
14 | 4d84c9ca4c30 |
15 | 24d9c9887ba5 |
hex | 124f2333a39a |
20131102303130 has 64 divisors (see below), whose sum is σ = 44628210240768. Its totient is φ = 6366865489920.
The previous prime is 20131102303111. The next prime is 20131102303133. The reversal of 20131102303130 is 3130320113102.
20131102303130 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×201311023031302 (a number of 27 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (20131102303133) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6109031 + ... + 8808090.
It is an arithmetic number, because the mean of its divisors is an integer number (697315785012).
Almost surely, 220131102303130 is an apocalyptic number.
20131102303130 is an abundant number, since it is smaller than the sum of its proper divisors (24497107937638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20131102303130 is a wasteful number, since it uses less digits than its factorization.
20131102303130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14918631.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 20131102303130 its reverse (3130320113102), we get a palindrome (23261422416232).
The spelling of 20131102303130 in words is "twenty trillion, one hundred thirty-one billion, one hundred two million, three hundred three thousand, one hundred thirty".
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