Base | Representation |
---|---|
bin | 1011110000111111101… |
… | …0010010011111001111 |
3 | 201022201211000021120201 |
4 | 2330033322102133033 |
5 | 11302430340314411 |
6 | 232505111554331 |
7 | 20413660030213 |
oct | 2741772223717 |
9 | 638654007521 |
10 | 202130401231 |
11 | 787a5384180 |
12 | 3321108b9a7 |
13 | 160a37c2815 |
14 | 9ad7002943 |
15 | 53d04e43c1 |
hex | 2f0fe927cf |
202130401231 has 8 divisors (see below), whose sum is σ = 220559346000. Its totient is φ = 183710365440.
The previous prime is 202130401181. The next prime is 202130401243. The reversal of 202130401231 is 132104031202.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 202130401231 - 211 = 202130399183 is a prime.
It is a super-2 number, since 2×2021304012312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 202130401199 and 202130401208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (202130401261) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179756 + ... + 2270593.
It is an arithmetic number, because the mean of its divisors is an integer number (27569918250).
Almost surely, 2202130401231 is an apocalyptic number.
202130401231 is a deficient number, since it is larger than the sum of its proper divisors (18428944769).
202130401231 is a wasteful number, since it uses less digits than its factorization.
202130401231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4454489.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 202130401231 its reverse (132104031202), we get a palindrome (334234432433).
The spelling of 202130401231 in words is "two hundred two billion, one hundred thirty million, four hundred one thousand, two hundred thirty-one".
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