Base | Representation |
---|---|
bin | 110000000000101011… |
… | …1110000101110101111 |
3 | 100212010101000111202100 |
4 | 1200001113300232233 |
5 | 3142123132034411 |
6 | 115210422230143 |
7 | 10306653264162 |
oct | 1400127605657 |
9 | 325111014670 |
10 | 103102221231 |
11 | 3a7a85748a9 |
12 | 17b94885353 |
13 | 99514347c9 |
14 | 4dc1075ad9 |
15 | 2a36771456 |
hex | 18015f0baf |
103102221231 has 24 divisors (see below), whose sum is σ = 159906693024. Its totient is φ = 63780433920.
The previous prime is 103102221199. The next prime is 103102221239. The reversal of 103102221231 is 132122201301.
103102221231 is a `hidden beast` number, since 10 + 310 + 222 + 123 + 1 = 666.
It is not a de Polignac number, because 103102221231 - 25 = 103102221199 is a prime.
It is a super-2 number, since 2×1031022212312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103102221239) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4734706 + ... + 4756431.
It is an arithmetic number, because the mean of its divisors is an integer number (6662778876).
Almost surely, 2103102221231 is an apocalyptic number.
103102221231 is a deficient number, since it is larger than the sum of its proper divisors (56804471793).
103102221231 is a wasteful number, since it uses less digits than its factorization.
103102221231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9491231 (or 9491228 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 103102221231 its reverse (132122201301), we get a palindrome (235224422532).
The spelling of 103102221231 in words is "one hundred three billion, one hundred two million, two hundred twenty-one thousand, two hundred thirty-one".
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