Base | Representation |
---|---|
bin | 10010101111110110… |
… | …010100101000111110 |
3 | 1220221220101011111021 |
4 | 102233312110220332 |
5 | 312211302403202 |
6 | 13125254214354 |
7 | 1311562134133 |
oct | 225766245076 |
9 | 56856334437 |
10 | 20130122302 |
11 | 859aa24914 |
12 | 3a996543ba |
13 | 1b8a636c94 |
14 | d8d6b858a |
15 | 7cc3c0a37 |
hex | 4afd94a3e |
20130122302 has 16 divisors (see below), whose sum is σ = 30608664912. Its totient is φ = 9927628480.
The previous prime is 20130122291. The next prime is 20130122303. The reversal of 20130122302 is 20322103102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20130122303) 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, 4152 + ... + 200692.
It is an arithmetic number, because the mean of its divisors is an integer number (1913041557).
Almost surely, 220130122302 is an apocalyptic number.
20130122302 is a deficient number, since it is larger than the sum of its proper divisors (10478542610).
20130122302 is a wasteful number, since it uses less digits than its factorization.
20130122302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 197243.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 20130122302 its reverse (20322103102), we get a palindrome (40452225404).
The spelling of 20130122302 in words is "twenty billion, one hundred thirty million, one hundred twenty-two thousand, three hundred two".
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