Base | Representation |
---|---|
bin | 101111101001001010… |
… | …1100101111001100111 |
3 | 100210002101012012001220 |
4 | 1133102111211321213 |
5 | 3134014124422211 |
6 | 115000233151423 |
7 | 10251262125411 |
oct | 1372225457147 |
9 | 323071165056 |
10 | 102313123431 |
11 | 3a4330aaa62 |
12 | 179b455b573 |
13 | 9856acb02c |
14 | 4d483479b1 |
15 | 29dc34e806 |
hex | 17d2565e67 |
102313123431 has 16 divisors (see below), whose sum is σ = 141130351200. Its totient is φ = 65852615808.
The previous prime is 102313123369. The next prime is 102313123441. The reversal of 102313123431 is 134321313201.
It is not a de Polignac number, because 102313123431 - 210 = 102313122407 is a prime.
It is a super-2 number, since 2×1023131234312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102313123441) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2035065 + ... + 2084733.
It is an arithmetic number, because the mean of its divisors is an integer number (8820646950).
Almost surely, 2102313123431 is an apocalyptic number.
102313123431 is a deficient number, since it is larger than the sum of its proper divisors (38817227769).
102313123431 is a wasteful number, since it uses less digits than its factorization.
102313123431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 73378.
The product of its (nonzero) digits is 1296, while the sum is 24.
Adding to 102313123431 its reverse (134321313201), we get a palindrome (236634436632).
The spelling of 102313123431 in words is "one hundred two billion, three hundred thirteen million, one hundred twenty-three thousand, four hundred thirty-one".
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