Base | Representation |
---|---|
bin | 111100100101111011… |
… | …0001100000110100101 |
3 | 110102212101120212110021 |
4 | 1321023312030012211 |
5 | 4112442101443204 |
6 | 135435455355141 |
7 | 12254350426513 |
oct | 1711366140645 |
9 | 412771525407 |
10 | 130121515429 |
11 | 50203226504 |
12 | 21275522ab1 |
13 | c36910c459 |
14 | 642569b4b3 |
15 | 35b8868154 |
hex | 1e4bd8c1a5 |
130121515429 has 4 divisors (see below), whose sum is σ = 130154320384. Its totient is φ = 130088710476.
The previous prime is 130121515421. The next prime is 130121515463. The reversal of 130121515429 is 924515121031.
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: 924515121031 = 37 ⋅24986895163.
It is a cyclic number.
It is not a de Polignac number, because 130121515429 - 23 = 130121515421 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 130121515394 and 130121515403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130121515421) 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, 16396527 + ... + 16404460.
It is an arithmetic number, because the mean of its divisors is an integer number (32538580096).
Almost surely, 2130121515429 is an apocalyptic number.
It is an amenable number.
130121515429 is a deficient number, since it is larger than the sum of its proper divisors (32804955).
130121515429 is an equidigital number, since it uses as much as digits as its factorization.
130121515429 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32804954.
The product of its (nonzero) digits is 10800, while the sum is 34.
The spelling of 130121515429 in words is "one hundred thirty billion, one hundred twenty-one million, five hundred fifteen thousand, four hundred twenty-nine".
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