Base | Representation |
---|---|
bin | 11000011001111001… |
… | …00011001011101111 |
3 | 1020211002220201000120 |
4 | 30030330203023233 |
5 | 203313114214411 |
6 | 10004035300023 |
7 | 642453010602 |
oct | 141474431357 |
9 | 36732821016 |
10 | 13102101231 |
11 | 561388163a |
12 | 2657a4a613 |
13 | 130a59ca2b |
14 | 8c4146339 |
15 | 51a3be106 |
hex | 30cf232ef |
13102101231 has 4 divisors (see below), whose sum is σ = 17469468312. Its totient is φ = 8734734152.
The previous prime is 13102101223. The next prime is 13102101253. The reversal of 13102101231 is 13210120131.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13102101231 - 23 = 13102101223 is a prime.
It is a super-2 number, since 2×131021012312 (a number of 21 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 13102101231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13102101281) 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 3 ways as a sum of consecutive naturals, for example, 2183683536 + ... + 2183683541.
It is an arithmetic number, because the mean of its divisors is an integer number (4367367078).
Almost surely, 213102101231 is an apocalyptic number.
13102101231 is a deficient number, since it is larger than the sum of its proper divisors (4367367081).
13102101231 is an equidigital number, since it uses as much as digits as its factorization.
13102101231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4367367080.
The product of its (nonzero) digits is 36, while the sum is 15.
Adding to 13102101231 its reverse (13210120131), we get a palindrome (26312221362).
The spelling of 13102101231 in words is "thirteen billion, one hundred two million, one hundred one thousand, two hundred thirty-one".
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