Search a number
-
+
131330123512 = 2372345180777
BaseRepresentation
bin111101001001111100…
…0101010011011111000
3110112222121210112001121
41322103320222123320
54122431002423022
6140155432155024
712326324426320
oct1722370523370
9415877715047
10131330123512
1150773481665
1221552238a74
13c4cc628a73
1464dbdcc280
153639a042c7
hex1e93e2a6f8

131330123512 has 16 divisors (see below), whose sum is σ = 281421693360. Its totient is φ = 56284338624.

The previous prime is 131330123501. The next prime is 131330123513. The reversal of 131330123512 is 215321033131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330123513) 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, 1172590333 + ... + 1172590444.

It is an arithmetic number, because the mean of its divisors is an integer number (17588855835).

Almost surely, 2131330123512 is an apocalyptic number.

It is an amenable number.

131330123512 is an abundant number, since it is smaller than the sum of its proper divisors (150091569848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131330123512 is a wasteful number, since it uses less digits than its factorization.

131330123512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345180790 (or 2345180786 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 131330123512 its reverse (215321033131), we get a palindrome (346651156643).

The spelling of 131330123512 in words is "one hundred thirty-one billion, three hundred thirty million, one hundred twenty-three thousand, five hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 2345180777 4690361554 9380723108 16416265439 18761446216 32832530878 65665061756 131330123512