Base | Representation |
---|---|
bin | 110111111100001010… |
… | …1010011111110011101 |
3 | 102111002002122022221001 |
4 | 1233320111103332131 |
5 | 3432011344002110 |
6 | 131104232310301 |
7 | 11451642002014 |
oct | 1577025237635 |
9 | 374062568831 |
10 | 120130453405 |
11 | 46a46566756 |
12 | 1b347542391 |
13 | b436231331 |
14 | 5b587c3a7b |
15 | 31d167363a |
hex | 1bf8553f9d |
120130453405 has 4 divisors (see below), whose sum is σ = 144156544092. Its totient is φ = 96104362720.
The previous prime is 120130453363. The next prime is 120130453409. The reversal of 120130453405 is 504354031021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504354031021 = 97 ⋅5199526093.
It can be written as a sum of positive squares in 2 ways, for example, as 85747651929 + 34382801476 = 292827^2 + 185426^2 .
It is a de Polignac number, because none of the positive numbers 2k-120130453405 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 (120130453409) 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, 12013045336 + ... + 12013045345.
It is an arithmetic number, because the mean of its divisors is an integer number (36039136023).
Almost surely, 2120130453405 is an apocalyptic number.
It is an amenable number.
120130453405 is a deficient number, since it is larger than the sum of its proper divisors (24026090687).
120130453405 is an equidigital number, since it uses as much as digits as its factorization.
120130453405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24026090686.
The product of its (nonzero) digits is 7200, while the sum is 28.
Adding to 120130453405 its reverse (504354031021), we get a palindrome (624484484426).
The spelling of 120130453405 in words is "one hundred twenty billion, one hundred thirty million, four hundred fifty-three thousand, four hundred five".
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