Base | Representation |
---|---|
bin | 1111100010101… |
… | …00010111000001 |
3 | 100002022102121001 |
4 | 13301110113001 |
5 | 231333301321 |
6 | 20534132001 |
7 | 3142055302 |
oct | 761242701 |
9 | 302272531 |
10 | 130368961 |
11 | 67654148 |
12 | 377b1001 |
13 | 210176c8 |
14 | 134587a9 |
15 | b6a2c91 |
hex | 7c545c1 |
130368961 has 4 divisors (see below), whose sum is σ = 130528192. Its totient is φ = 130209732.
The previous prime is 130368947. The next prime is 130368977. The reversal of 130368961 is 169863031.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130368961 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 130368961.
It is not an unprimeable number, because it can be changed into a prime (130368061) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78381 + ... + 80026.
It is an arithmetic number, because the mean of its divisors is an integer number (32632048).
Almost surely, 2130368961 is an apocalyptic number.
It is an amenable number.
130368961 is a deficient number, since it is larger than the sum of its proper divisors (159231).
130368961 is an equidigital number, since it uses as much as digits as its factorization.
130368961 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 159230.
The product of its (nonzero) digits is 23328, while the sum is 37.
The square root of 130368961 is about 11417.9227970765. The cubic root of 130368961 is about 507.0585009011.
The spelling of 130368961 in words is "one hundred thirty million, three hundred sixty-eight thousand, nine hundred sixty-one".
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