Base | Representation |
---|---|
bin | 11000100111000000… |
… | …10001101110100111 |
3 | 1021002202221202102010 |
4 | 30103200101232213 |
5 | 204024301131330 |
6 | 10023005445303 |
7 | 645260153034 |
oct | 142340215647 |
9 | 37082852363 |
10 | 13212130215 |
11 | 566a9a2a89 |
12 | 2688870833 |
13 | 132731533b |
14 | 8d49c838b |
15 | 524da53b0 |
hex | 313811ba7 |
13212130215 has 8 divisors (see below), whose sum is σ = 21139408368. Its totient is φ = 7046469440.
The previous prime is 13212130199. The next prime is 13212130279. The reversal of 13212130215 is 51203121231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13212130215 - 24 = 13212130199 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13212130191 and 13212130200.
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, 440404326 + ... + 440404355.
It is an arithmetic number, because the mean of its divisors is an integer number (2642426046).
Almost surely, 213212130215 is an apocalyptic number.
13212130215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13212130215 is a deficient number, since it is larger than the sum of its proper divisors (7927278153).
13212130215 is an equidigital number, since it uses as much as digits as its factorization.
13212130215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 880808689.
The product of its (nonzero) digits is 360, while the sum is 21.
Adding to 13212130215 its reverse (51203121231), we get a palindrome (64415251446).
The spelling of 13212130215 in words is "thirteen billion, two hundred twelve million, one hundred thirty thousand, two hundred fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •