Base | Representation |
---|---|
bin | 11000100110111111… |
… | …10100111010111011 |
3 | 1021002202201202112220 |
4 | 30103133310322323 |
5 | 204024233342334 |
6 | 10023003135123 |
7 | 645256152030 |
oct | 142337647273 |
9 | 37082652486 |
10 | 13212012219 |
11 | 566a92236a |
12 | 26888144a3 |
13 | 13272a3713 |
14 | 8d4997387 |
15 | 524d80449 |
hex | 3137f4ebb |
13212012219 has 32 divisors (see below), whose sum is σ = 20477829120. Its totient is φ = 7421105952.
The previous prime is 13212012217. The next prime is 13212012223. The reversal of 13212012219 is 91221021231.
It is not a de Polignac number, because 13212012219 - 21 = 13212012217 is a prime.
It is a super-2 number, since 2×132120122192 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13212012217) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359052 + ... + 394134.
It is an arithmetic number, because the mean of its divisors is an integer number (639932160).
Almost surely, 213212012219 is an apocalyptic number.
13212012219 is a deficient number, since it is larger than the sum of its proper divisors (7265816901).
13212012219 is a wasteful number, since it uses less digits than its factorization.
13212012219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35399.
The product of its (nonzero) digits is 432, while the sum is 24.
It can be divided in two parts, 132 and 12012219, that added together give a triangular number (12012351 = T4901).
The spelling of 13212012219 in words is "thirteen billion, two hundred twelve million, twelve thousand, two hundred nineteen".
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