Base | Representation |
---|---|
bin | 10010101010011111… |
… | …01001101110100111 |
3 | 221212022120212120000 |
4 | 21111033221232213 |
5 | 131010121213111 |
6 | 4334141312343 |
7 | 503210311353 |
oct | 112517515647 |
9 | 27768525500 |
10 | 10020101031 |
11 | 42820a4236 |
12 | 1b378656b3 |
13 | c38c07885 |
14 | 6b0ab6463 |
15 | 3d9a2dc56 |
hex | 2553e9ba7 |
10020101031 has 10 divisors (see below), whose sum is σ = 14968299192. Its totient is φ = 6680067300.
The previous prime is 10020100969. The next prime is 10020101059. The reversal of 10020101031 is 13010102001.
It is not a de Polignac number, because 10020101031 - 211 = 10020098983 is a prime.
It is a super-2 number, since 2×100201010312 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10020101071) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61852395 + ... + 61852556.
Almost surely, 210020101031 is an apocalyptic number.
10020101031 is a deficient number, since it is larger than the sum of its proper divisors (4948198161).
10020101031 is an equidigital number, since it uses as much as digits as its factorization.
10020101031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 123704963 (or 123704954 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 9.
Adding to 10020101031 its reverse (13010102001), we get a palindrome (23030203032).
The spelling of 10020101031 in words is "ten billion, twenty million, one hundred one thousand, thirty-one".
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