Base | Representation |
---|---|
bin | 1111100001010… |
… | …11110011111111 |
3 | 100001222222202212 |
4 | 13300223303333 |
5 | 231312443004 |
6 | 20530411035 |
7 | 3140464142 |
oct | 760536377 |
9 | 301888685 |
10 | 130202879 |
11 | 67550394 |
12 | 37730a7b |
13 | 20c89c31 |
14 | 13414059 |
15 | b66d96e |
hex | 7c2bcff |
130202879 has 4 divisors (see below), whose sum is σ = 130231584. Its totient is φ = 130174176.
The previous prime is 130202851. The next prime is 130202903. The reversal of 130202879 is 978202031.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130202879 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130202819) 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 3 ways as a sum of consecutive naturals, for example, 5882 + ... + 17175.
It is an arithmetic number, because the mean of its divisors is an integer number (32557896).
Almost surely, 2130202879 is an apocalyptic number.
130202879 is a deficient number, since it is larger than the sum of its proper divisors (28705).
130202879 is an equidigital number, since it uses as much as digits as its factorization.
130202879 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28704.
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 130202879 is about 11410.6476152758. The cubic root of 130202879 is about 506.8430890028.
The spelling of 130202879 in words is "one hundred thirty million, two hundred two thousand, eight hundred seventy-nine".
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