Base | Representation |
---|---|
bin | 101111100011101111… |
… | …1001110100101100001 |
3 | 100202121200200102212101 |
4 | 1133013133032211201 |
5 | 3133131030200001 |
6 | 114530211530401 |
7 | 10243622012020 |
oct | 1370737164541 |
9 | 322550612771 |
10 | 102131100001 |
11 | 3a34a386077 |
12 | 179635b9a01 |
13 | 9828199168 |
14 | 4d2c0c48b7 |
15 | 29cb396a01 |
hex | 17c77ce961 |
102131100001 has 32 divisors (see below), whose sum is σ = 121594636800. Its totient is φ = 83929789440.
The previous prime is 102131099977. The next prime is 102131100017. The reversal of 102131100001 is 100001131201.
It is not a de Polignac number, because 102131100001 - 211 = 102131097953 is a prime.
It is not an unprimeable number, because it can be changed into a prime (102131100041) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30825721 + ... + 30829033.
It is an arithmetic number, because the mean of its divisors is an integer number (3799832400).
Almost surely, 2102131100001 is an apocalyptic number.
It is an amenable number.
102131100001 is a deficient number, since it is larger than the sum of its proper divisors (19463536799).
102131100001 is a wasteful number, since it uses less digits than its factorization.
102131100001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4369.
The product of its (nonzero) digits is 6, while the sum is 10.
Adding to 102131100001 its reverse (100001131201), we get a palindrome (202132231202).
The spelling of 102131100001 in words is "one hundred two billion, one hundred thirty-one million, one hundred thousand, one".
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