Base | Representation |
---|---|
bin | 10101100010101010… |
… | …011010101111001101 |
3 | 2012200222102000002010 |
4 | 111202222122233031 |
5 | 334332302420323 |
6 | 14343102451433 |
7 | 1446120542361 |
oct | 254252325715 |
9 | 65628360063 |
10 | 23130123213 |
11 | 989a395a0a |
12 | 4596293b79 |
13 | 224801ba52 |
14 | 1195cc12a1 |
15 | 905964c93 |
hex | 562a9abcd |
23130123213 has 8 divisors (see below), whose sum is σ = 32181041088. Its totient is φ = 14749643744.
The previous prime is 23130123187. The next prime is 23130123239. The reversal of 23130123213 is 31232103132.
It is an interprime number because it is at equal distance from previous prime (23130123187) and next prime (23130123239).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 23130123213 - 216 = 23130057677 is a prime.
It is a super-2 number, since 2×231301232132 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 23130123213.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23130123283) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167609520 + ... + 167609657.
It is an arithmetic number, because the mean of its divisors is an integer number (4022630136).
Almost surely, 223130123213 is an apocalyptic number.
23130123213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
23130123213 is a deficient number, since it is larger than the sum of its proper divisors (9050917875).
23130123213 is a wasteful number, since it uses less digits than its factorization.
23130123213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 335219203.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 23130123213 its reverse (31232103132), we get a palindrome (54362226345).
The spelling of 23130123213 in words is "twenty-three billion, one hundred thirty million, one hundred twenty-three thousand, two hundred thirteen".
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