Search a number
-
+
130123011 = 3731374337
BaseRepresentation
bin1111100000110…
…00010100000011
3100001211221012210
413300120110003
5231302414021
620524553203
73140012244
oct760302403
9301757183
10130123011
11674a6387
12376b2803
1320c5c785
14133d2ccb
15b654e76
hex7c18503

130123011 has 16 divisors (see below), whose sum is σ = 177198624. Its totient is φ = 84916224.

The previous prime is 130123009. The next prime is 130123061. The reversal of 130123011 is 110321031.

It is not a de Polignac number, because 130123011 - 21 = 130123009 is a prime.

It is a super-2 number, since 2×1301230112 = 33863995983412242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130123061) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27835 + ... + 32171.

It is an arithmetic number, because the mean of its divisors is an integer number (11074914).

Almost surely, 2130123011 is an apocalyptic number.

130123011 is a deficient number, since it is larger than the sum of its proper divisors (47075613).

130123011 is a wasteful number, since it uses less digits than its factorization.

130123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 130123011 is about 11407.1473647008. The cubic root of 130123011 is about 506.7394332720.

Adding to 130123011 its reverse (110321031), we get a palindrome (240444042).

The spelling of 130123011 in words is "one hundred thirty million, one hundred twenty-three thousand, eleven".

Divisors: 1 3 73 137 219 411 4337 10001 13011 30003 316601 594169 949803 1782507 43374337 130123011