Base | Representation |
---|---|
bin | 1111100011000… |
… | …01011101101101 |
3 | 100002102011020001 |
4 | 13301201131231 |
5 | 231342011022 |
6 | 20535224301 |
7 | 3142400632 |
oct | 761413555 |
9 | 302364201 |
10 | 130422637 |
11 | 67690504 |
12 | 37818091 |
13 | 21035c77 |
14 | 13470189 |
15 | b6b3b27 |
hex | 7c6176d |
130422637 has 2 divisors, whose sum is σ = 130422638. Its totient is φ = 130422636.
The previous prime is 130422577. The next prime is 130422671. The reversal of 130422637 is 736224031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 123965956 + 6456681 = 11134^2 + 2541^2 .
It is an emirp because it is prime and its reverse (736224031) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130422637 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130422337) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65211318 + 65211319.
It is an arithmetic number, because the mean of its divisors is an integer number (65211319).
Almost surely, 2130422637 is an apocalyptic number.
It is an amenable number.
130422637 is a deficient number, since it is larger than the sum of its proper divisors (1).
130422637 is an equidigital number, since it uses as much as digits as its factorization.
130422637 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6048, while the sum is 28.
The square root of 130422637 is about 11420.2730702904. The cubic root of 130422637 is about 507.1280806985.
Adding to 130422637 its reverse (736224031), we get a palindrome (866646668).
The spelling of 130422637 in words is "one hundred thirty million, four hundred twenty-two thousand, six hundred thirty-seven".
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