Base | Representation |
---|---|
bin | 11110010001111… |
… | …00001111010011 |
3 | 122200221122102100 |
4 | 33020330033103 |
5 | 1010011032011 |
6 | 41112051443 |
7 | 6202660665 |
oct | 1710741723 |
9 | 580848370 |
10 | 254002131 |
11 | 120417619 |
12 | 71093b83 |
13 | 40814226 |
14 | 25a3c535 |
15 | 17474d56 |
hex | f23c3d3 |
254002131 has 6 divisors (see below), whose sum is σ = 366891980. Its totient is φ = 169334748.
The previous prime is 254002123. The next prime is 254002141. The reversal of 254002131 is 131200452.
It is not a de Polignac number, because 254002131 - 23 = 254002123 is a prime.
It is a super-2 number, since 2×2540021312 = 129034165105082322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (254002141) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14111221 + ... + 14111238.
Almost surely, 2254002131 is an apocalyptic number.
254002131 is a deficient number, since it is larger than the sum of its proper divisors (112889849).
254002131 is a wasteful number, since it uses less digits than its factorization.
254002131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28222465 (or 28222462 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 254002131 is about 15937.4443057850. Note that the first 3 decimals coincide. The cubic root of 254002131 is about 633.3043242176.
Adding to 254002131 its reverse (131200452), we get a palindrome (385202583).
The spelling of 254002131 in words is "two hundred fifty-four million, two thousand, one hundred thirty-one".
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