Search a number
-
+
130123025 = 5247591877
BaseRepresentation
bin1111100000110…
…00010100010001
3100001211221020022
413300120110101
5231302414100
620524553225
73140012264
oct760302421
9301757208
10130123025
11674a639a
12376b2815
1320c5c796
14133d2cdb
15b654e85
hex7c18511

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".

Divisors: 1 5 25 47 59 235 295 1175 1475 1877 2773 9385 13865 46925 69325 88219 110743 441095 553715 2205475 2768575 5204921 26024605 130123025