Base | Representation |
---|---|
bin | 1101011100101010011… |
… | …0000001110010101011 |
3 | 211002100000220110112020 |
4 | 3113022212001302223 |
5 | 12241123222430011 |
6 | 254045034315523 |
7 | 22456123402620 |
oct | 3271246016253 |
9 | 732300813466 |
10 | 231032233131 |
11 | 89a86744267 |
12 | 38938288ba3 |
13 | 18a2b4c89bb |
14 | b279668347 |
15 | 60229ea006 |
hex | 35ca981cab |
231032233131 has 16 divisors (see below), whose sum is σ = 352062873600. Its totient is φ = 132013260288.
The previous prime is 231032233129. The next prime is 231032233151. The reversal of 231032233131 is 131332230132.
231032233131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 231032233131 - 21 = 231032233129 is a prime.
It is a super-2 number, since 2×2310322331312 (a number of 24 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (231032233121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372630 + ... + 775188.
It is an arithmetic number, because the mean of its divisors is an integer number (22003929600).
Almost surely, 2231032233131 is an apocalyptic number.
231032233131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
231032233131 is a deficient number, since it is larger than the sum of its proper divisors (121030640469).
231032233131 is a wasteful number, since it uses less digits than its factorization.
231032233131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 429898.
The product of its (nonzero) digits is 1944, while the sum is 24.
Adding to 231032233131 its reverse (131332230132), we get a palindrome (362364463263).
The spelling of 231032233131 in words is "two hundred thirty-one billion, thirty-two million, two hundred thirty-three thousand, one hundred thirty-one".
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