Base | Representation |
---|---|
bin | 11000011010000001… |
… | …10001111010001100 |
3 | 1020211012000001010200 |
4 | 30031000301322030 |
5 | 203313410210444 |
6 | 10004115133500 |
7 | 642465306534 |
oct | 141500617214 |
9 | 36735001120 |
10 | 13103210124 |
11 | 5614469784 |
12 | 26582a4290 |
13 | 130a89a694 |
14 | 8c43544c4 |
15 | 51a53c969 |
hex | 30d031e8c |
13103210124 has 72 divisors (see below), whose sum is σ = 34587571200. Its totient is φ = 4174755552.
The previous prime is 13103210119. The next prime is 13103210143. The reversal of 13103210124 is 42101230131.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13103210097 and 13103210106.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1292427 + ... + 1302525.
Almost surely, 213103210124 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13103210124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17293785600).
13103210124 is an abundant number, since it is smaller than the sum of its proper divisors (21484361076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13103210124 is a wasteful number, since it uses less digits than its factorization.
13103210124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11699 (or 11694 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 13103210124 its reverse (42101230131), we get a palindrome (55204440255).
The spelling of 13103210124 in words is "thirteen billion, one hundred three million, two hundred ten thousand, one hundred twenty-four".
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