Base | Representation |
---|---|
bin | 11000000101010… |
… | …10100111010111 |
3 | 112002010221210101 |
4 | 30002222213113 |
5 | 403204303211 |
6 | 32014034531 |
7 | 5002121266 |
oct | 1402524727 |
9 | 462127711 |
10 | 202025431 |
11 | a4046773 |
12 | 577a8a47 |
13 | 32b1619a |
14 | 1cb8c5dd |
15 | 12b095c1 |
hex | c0aa9d7 |
202025431 has 2 divisors, whose sum is σ = 202025432. Its totient is φ = 202025430.
The previous prime is 202025429. The next prime is 202025437. The reversal of 202025431 is 134520202.
202025431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 202025431 - 21 = 202025429 is a prime.
It is a super-2 number, since 2×2020254312 = 81628549541471522, which contains 22 as substring.
Together with 202025429, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 202025399 and 202025408.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (202025437) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101012715 + 101012716.
It is an arithmetic number, because the mean of its divisors is an integer number (101012716).
Almost surely, 2202025431 is an apocalyptic number.
202025431 is a deficient number, since it is larger than the sum of its proper divisors (1).
202025431 is an equidigital number, since it uses as much as digits as its factorization.
202025431 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 480, while the sum is 19.
The square root of 202025431 is about 14213.5650348531. The cubic root of 202025431 is about 586.7710528283.
Adding to 202025431 its reverse (134520202), we get a palindrome (336545633).
The spelling of 202025431 in words is "two hundred two million, twenty-five thousand, four hundred thirty-one".
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