Base | Representation |
---|---|
bin | 11001001101000010… |
… | …11100010111000100 |
3 | 1021221000100100000010 |
4 | 30212201130113010 |
5 | 210202441444022 |
6 | 10114404350220 |
7 | 656213220315 |
oct | 144641342704 |
9 | 37830310003 |
10 | 13531203012 |
11 | 5814014108 |
12 | 27576a5370 |
13 | 1378460502 |
14 | 92512460c |
15 | 542dd050c |
hex | 32685c5c4 |
13531203012 has 24 divisors (see below), whose sum is σ = 31578388576. Its totient is φ = 4509603648.
The previous prime is 13531202969. The next prime is 13531203013. The reversal of 13531203012 is 21030213531.
It is a self number, because there is not a number n which added to its sum of digits gives 13531203012.
It is not an unprimeable number, because it can be changed into a prime (13531203013) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26833 + ... + 166680.
Almost surely, 213531203012 is an apocalyptic number.
13531203012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13531203012 is an abundant number, since it is smaller than the sum of its proper divisors (18047185564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13531203012 is a wasteful number, since it uses less digits than its factorization.
13531203012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 199347 (or 199345 counting only the distinct ones).
The product of its (nonzero) digits is 540, while the sum is 21.
Adding to 13531203012 its reverse (21030213531), we get a palindrome (34561416543).
The spelling of 13531203012 in words is "thirteen billion, five hundred thirty-one million, two hundred three thousand, twelve".
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