Base | Representation |
---|---|
bin | 1111100000110… |
… | …00010100010001 |
3 | 100001211221020022 |
4 | 13300120110101 |
5 | 231302414100 |
6 | 20524553225 |
7 | 3140012264 |
oct | 760302421 |
9 | 301757208 |
10 | 130123025 |
11 | 674a639a |
12 | 376b2815 |
13 | 20c5c796 |
14 | 133d2cdb |
15 | b654e85 |
hex | 7c18511 |
130123025 has 24 divisors (see below), whose sum is σ = 167667840. Its totient is φ = 100103360.
The previous prime is 130123009. The next prime is 130123061. The reversal of 130123025 is 520321031.
It is not a de Polignac number, because 130123025 - 24 = 130123009 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130122994 and 130123012.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68387 + ... + 70263.
It is an arithmetic number, because the mean of its divisors is an integer number (6986160).
Almost surely, 2130123025 is an apocalyptic number.
It is an amenable number.
130123025 is a deficient number, since it is larger than the sum of its proper divisors (37544815).
130123025 is a wasteful number, since it uses less digits than its factorization.
130123025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1993 (or 1988 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 130123025 is about 11407.1479783511. The cubic root of 130123025 is about 506.7394514454.
Adding to 130123025 its reverse (520321031), we get a palindrome (650444056).
The spelling of 130123025 in words is "one hundred thirty million, one hundred twenty-three thousand, twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •