Base | Representation |
---|---|
bin | 11000001111001001… |
… | …11000111111010100 |
3 | 1020120211101202012212 |
4 | 30013210320333110 |
5 | 203122033404022 |
6 | 5551100332552 |
7 | 640310166665 |
oct | 140744707724 |
9 | 36524352185 |
10 | 13012013012 |
11 | 5577a3aa69 |
12 | 2631844158 |
13 | 12c4a198ab |
14 | 8b61b536c |
15 | 5125263e2 |
hex | 307938fd4 |
13012013012 has 24 divisors (see below), whose sum is σ = 23005871112. Its totient is φ = 6438960000.
The previous prime is 13012012967. The next prime is 13012013051. The reversal of 13012013012 is 21031021031.
It can be written as a sum of positive squares in 4 ways, for example, as 12304133776 + 707879236 = 110924^2 + 26606^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309262 + ... + 1319162.
It is an arithmetic number, because the mean of its divisors is an integer number (958577963).
Almost surely, 213012013012 is an apocalyptic number.
It is an amenable number.
13012013012 is a deficient number, since it is larger than the sum of its proper divisors (9993858100).
13012013012 is a wasteful number, since it uses less digits than its factorization.
13012013012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13259 (or 13257 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 13012013012 its reverse (21031021031), we get a palindrome (34043034043).
The spelling of 13012013012 in words is "thirteen billion, twelve million, thirteen thousand, twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.139 sec. • engine limits •