Base | Representation |
---|---|
bin | 1100001110001… |
… | …00000011110011 |
3 | 21010220022001022 |
4 | 12013010003303 |
5 | 202220434211 |
6 | 14101130055 |
7 | 2353235231 |
oct | 607040363 |
9 | 233808038 |
10 | 102514931 |
11 | 52959a92 |
12 | 2a3b992b |
13 | 1831442c |
14 | d887951 |
15 | 8eeebdb |
hex | 61c40f3 |
102514931 has 2 divisors, whose sum is σ = 102514932. Its totient is φ = 102514930.
The previous prime is 102514889. The next prime is 102514939. The reversal of 102514931 is 139415201.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 102514931 - 210 = 102513907 is a prime.
It is a super-2 number, since 2×1025149312 = 21018622155869522, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 102514931.
It is not a weakly prime, because it can be changed into another prime (102514939) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51257465 + 51257466.
It is an arithmetic number, because the mean of its divisors is an integer number (51257466).
Almost surely, 2102514931 is an apocalyptic number.
102514931 is a deficient number, since it is larger than the sum of its proper divisors (1).
102514931 is an equidigital number, since it uses as much as digits as its factorization.
102514931 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1080, while the sum is 26.
The square root of 102514931 is about 10124.9657283371. The cubic root of 102514931 is about 468.0178040686.
The spelling of 102514931 in words is "one hundred two million, five hundred fourteen thousand, nine hundred thirty-one".
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