Base | Representation |
---|---|
bin | 101111101001001010… |
… | …1001010111100100111 |
3 | 100210002100222120122000 |
4 | 1133102111022330213 |
5 | 3134014112404111 |
6 | 115000230540343 |
7 | 10251261155505 |
oct | 1372225127447 |
9 | 323070876560 |
10 | 102313013031 |
11 | 3a433035019 |
12 | 179b45076b3 |
13 | 9856a8c9c8 |
14 | 4d48319675 |
15 | 29dc32bc56 |
hex | 17d254af27 |
102313013031 has 16 divisors (see below), whose sum is σ = 151582552800. Its totient is φ = 68205201984.
The previous prime is 102313013017. The next prime is 102313013069. The reversal of 102313013031 is 130310313201.
It is a happy number.
It is not a de Polignac number, because 102313013031 - 217 = 102312881959 is a prime.
It is a super-2 number, since 2×1023130130312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 102313012995 and 102313013013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102313013431) 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, 513715 + ... + 684491.
It is an arithmetic number, because the mean of its divisors is an integer number (9473909550).
Almost surely, 2102313013031 is an apocalyptic number.
102313013031 is a deficient number, since it is larger than the sum of its proper divisors (49269539769).
102313013031 is a wasteful number, since it uses less digits than its factorization.
102313013031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192975 (or 192969 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 102313013031 its reverse (130310313201), we get a palindrome (232623326232).
The spelling of 102313013031 in words is "one hundred two billion, three hundred thirteen million, thirteen thousand, thirty-one".
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