Base | Representation |
---|---|
bin | 1101011100101001110… |
… | …1100011100001110111 |
3 | 211002022212201121201222 |
4 | 3113022131203201313 |
5 | 12241122140341043 |
6 | 254044514540555 |
7 | 22456065462236 |
oct | 3271235434167 |
9 | 732285647658 |
10 | 231030012023 |
11 | 89a85467538 |
12 | 3893759775b |
13 | 18a2abcba35 |
14 | b27924ab1d |
15 | 602270bd68 |
hex | 35ca763877 |
231030012023 has 32 divisors (see below), whose sum is σ = 259465021440. Its totient is φ = 204769918080.
The previous prime is 231030012007. The next prime is 231030012049. The reversal of 231030012023 is 320210030132.
It is a cyclic number.
It is not a de Polignac number, because 231030012023 - 24 = 231030012007 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 231030011992 and 231030012010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231030012523) 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, 3387740 + ... + 3455262.
It is an arithmetic number, because the mean of its divisors is an integer number (8108281920).
Almost surely, 2231030012023 is an apocalyptic number.
231030012023 is a deficient number, since it is larger than the sum of its proper divisors (28435009417).
231030012023 is a wasteful number, since it uses less digits than its factorization.
231030012023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67767.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 231030012023 its reverse (320210030132), we get a palindrome (551240042155).
The spelling of 231030012023 in words is "two hundred thirty-one billion, thirty million, twelve thousand, twenty-three".
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