Base | Representation |
---|---|
bin | 111100101011101000… |
… | …1001001100001011001 |
3 | 110110100202011000010210 |
4 | 1321113101021201121 |
5 | 4113340130211441 |
6 | 135510502401333 |
7 | 12262165226664 |
oct | 1712721114131 |
9 | 413322130123 |
10 | 130313132121 |
11 | 502a1402a07 |
12 | 21309730249 |
13 | c399a1ca03 |
14 | 6442cda6db |
15 | 35ca5b8616 |
hex | 1e57449859 |
130313132121 has 4 divisors (see below), whose sum is σ = 173750842832. Its totient is φ = 86875421412.
The previous prime is 130313132111. The next prime is 130313132143. The reversal of 130313132121 is 121231313031.
It is a happy number.
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, and also an emirpimes, since its reverse is a distinct semiprime: 121231313031 = 3 ⋅40410437677.
It is a de Polignac number, because none of the positive numbers 2k-130313132121 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130313132111) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21718855351 + ... + 21718855356.
It is an arithmetic number, because the mean of its divisors is an integer number (43437710708).
Almost surely, 2130313132121 is an apocalyptic number.
It is an amenable number.
130313132121 is a deficient number, since it is larger than the sum of its proper divisors (43437710711).
130313132121 is an equidigital number, since it uses as much as digits as its factorization.
130313132121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43437710710.
The product of its (nonzero) digits is 324, while the sum is 21.
Adding to 130313132121 its reverse (121231313031), we get a palindrome (251544445152).
The spelling of 130313132121 in words is "one hundred thirty billion, three hundred thirteen million, one hundred thirty-two thousand, one hundred twenty-one".
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