Base | Representation |
---|---|
bin | 11000011001111000… |
… | …01101011100110111 |
3 | 1020211002202011220200 |
4 | 30030330031130313 |
5 | 203313103342330 |
6 | 10004033331543 |
7 | 642452160225 |
oct | 141474153467 |
9 | 36732664820 |
10 | 13102012215 |
11 | 5613820776 |
12 | 2657a06bb3 |
13 | 130a56b366 |
14 | 8c4121b15 |
15 | 51a3a2a60 |
hex | 30cf0d737 |
13102012215 has 24 divisors (see below), whose sum is σ = 23697554400. Its totient is φ = 6683924544.
The previous prime is 13102012211. The next prime is 13102012241. The reversal of 13102012215 is 51221020131.
It is not a de Polignac number, because 13102012215 - 22 = 13102012211 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13102012211) 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 23 ways as a sum of consecutive naturals, for example, 6328440 + ... + 6330509.
It is an arithmetic number, because the mean of its divisors is an integer number (987398100).
Almost surely, 213102012215 is an apocalyptic number.
13102012215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13102012215 is a deficient number, since it is larger than the sum of its proper divisors (10595542185).
13102012215 is a wasteful number, since it uses less digits than its factorization.
13102012215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12658983 (or 12658980 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
Adding to 13102012215 its reverse (51221020131), we get a palindrome (64323032346).
The spelling of 13102012215 in words is "thirteen billion, one hundred two million, twelve thousand, two hundred fifteen".
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