Base | Representation |
---|---|
bin | 1001011011010110… |
… | …0101101100011111 |
3 | 20112100211100100000 |
4 | 2112311211230133 |
5 | 20140320133211 |
6 | 1055040105343 |
7 | 116466001200 |
oct | 22665455437 |
9 | 6470740300 |
10 | 2530630431 |
11 | 108952510a |
12 | 5a7605253 |
13 | 314395374 |
14 | 1a01455a7 |
15 | ec27b656 |
hex | 96d65b1f |
2530630431 has 72 divisors (see below), whose sum is σ = 4431108864. Its totient is φ = 1439046000.
The previous prime is 2530630411. The next prime is 2530630441. The reversal of 2530630431 is 1340360352.
It is a happy number.
2530630431 is a `hidden beast` number, since 25 + 3 + 0 + 630 + 4 + 3 + 1 = 666.
It is not a de Polignac number, because 2530630431 - 29 = 2530629919 is a prime.
It is a super-2 number, since 2×25306304312 = 12808180756606491522, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 2530630395 and 2530630404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2530630411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3369306 + ... + 3370056.
Almost surely, 22530630431 is an apocalyptic number.
2530630431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2530630431 is a deficient number, since it is larger than the sum of its proper divisors (1900478433).
2530630431 is an equidigital number, since it uses as much as digits as its factorization.
2530630431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1063 (or 1044 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 27.
The square root of 2530630431 is about 50305.3717906945. The cubic root of 2530630431 is about 1362.7292423074.
Adding to 2530630431 its reverse (1340360352), we get a palindrome (3870990783).
The spelling of 2530630431 in words is "two billion, five hundred thirty million, six hundred thirty thousand, four hundred thirty-one".
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