Base | Representation |
---|---|
bin | 100111000111001… |
… | …1101001000110101 |
3 | 10101110112110002202 |
4 | 1032032131020311 |
5 | 10141434142323 |
6 | 334121314245 |
7 | 44344214450 |
oct | 11616351065 |
9 | 3343473082 |
10 | 1312412213 |
11 | 6139057a2 |
12 | 307635985 |
13 | 17bb92798 |
14 | c6432497 |
15 | 7a342d28 |
hex | 4e39d235 |
1312412213 has 8 divisors (see below), whose sum is σ = 1578841920. Its totient is φ = 1065718080.
The previous prime is 1312412207. The next prime is 1312412219. The reversal of 1312412213 is 3122142131.
It is an interprime number because it is at equal distance from previous prime (1312412207) and next prime (1312412219).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1312412213 - 214 = 1312395829 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1312412219) 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, 4933748 + ... + 4934013.
It is an arithmetic number, because the mean of its divisors is an integer number (197355240).
Almost surely, 21312412213 is an apocalyptic number.
It is an amenable number.
1312412213 is a deficient number, since it is larger than the sum of its proper divisors (266429707).
1312412213 is an equidigital number, since it uses as much as digits as its factorization.
1312412213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9867787.
The product of its digits is 288, while the sum is 20.
The square root of 1312412213 is about 36227.2302695086. The cubic root of 1312412213 is about 1094.8553739613.
Adding to 1312412213 its reverse (3122142131), we get a palindrome (4434554344).
The spelling of 1312412213 in words is "one billion, three hundred twelve million, four hundred twelve thousand, two hundred thirteen".
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