Base | Representation |
---|---|
bin | 1001001001000101001011… |
… | …11100110000100000001110 |
3 | 2122011211221202000101222211 |
4 | 10210202211330300200032 |
5 | 10113332404131110410 |
6 | 110431144043101034 |
7 | 4143260544013366 |
oct | 444424574604016 |
9 | 78154852011884 |
10 | 20103231113230 |
11 | 6450806967351 |
12 | 230818351177a |
13 | b2a95a3368a5 |
14 | 4d70044859a6 |
15 | 24cde7ab768a |
hex | 1248a5f3080e |
20103231113230 has 32 divisors (see below), whose sum is σ = 36221609276640. Its totient is φ = 8033339099520.
The previous prime is 20103231113213. The next prime is 20103231113243. The reversal of 20103231113230 is 3231113230102.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390199432 + ... + 390250948.
It is an arithmetic number, because the mean of its divisors is an integer number (1131925289895).
Almost surely, 220103231113230 is an apocalyptic number.
20103231113230 is a deficient number, since it is larger than the sum of its proper divisors (16118378163410).
20103231113230 is a wasteful number, since it uses less digits than its factorization.
20103231113230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89364.
The product of its (nonzero) digits is 648, while the sum is 22.
Adding to 20103231113230 its reverse (3231113230102), we get a palindrome (23334344343332).
The spelling of 20103231113230 in words is "twenty trillion, one hundred three billion, two hundred thirty-one million, one hundred thirteen thousand, two hundred thirty".
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