Search a number
-
+
130123001 = 1983109757
BaseRepresentation
bin1111100000110…
…00010011111001
3100001211221012102
413300120103321
5231302414001
620524553145
73140012231
oct760302371
9301757172
10130123001
11674a6378
12376b27b5
1320c5c778
14133d2cc1
15b654e6b
hex7c184f9

130123001 has 16 divisors (see below), whose sum is σ = 140078400. Its totient is φ = 120512448.

The previous prime is 130122989. The next prime is 130123009. The reversal of 130123001 is 100321031.

It is a cyclic number.

It is not a de Polignac number, because 130123001 - 210 = 130121977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130123009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171515 + ... + 172271.

It is an arithmetic number, because the mean of its divisors is an integer number (8754900).

Almost surely, 2130123001 is an apocalyptic number.

It is an amenable number.

130123001 is a deficient number, since it is larger than the sum of its proper divisors (9955399).

130123001 is a wasteful number, since it uses less digits than its factorization.

130123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 130123001 is about 11407.1469263791. The cubic root of 130123001 is about 506.7394202909.

Adding to 130123001 its reverse (100321031), we get a palindrome (230444032).

The spelling of 130123001 in words is "one hundred thirty million, one hundred twenty-three thousand, one".

Divisors: 1 19 83 109 757 1577 2071 9047 14383 62831 82513 171893 1193789 1567747 6848579 130123001