Search a number
-
+
12310030131 = 37678749133
BaseRepresentation
bin10110111011011110…
…00010011100110011
31011202220111022201220
423131233002130303
5200202331431011
65353302400123
7614024346450
oct133557023463
934686438656
1012310030131
115247766923
122476730043
131212464ac9
1484ac82827
154c0ab1506
hex2ddbc2733

12310030131 has 16 divisors (see below), whose sum is σ = 19038115584. Its totient is φ = 6929312544.

The previous prime is 12310030127. The next prime is 12310030133. The reversal of 12310030131 is 13103001321.

It is not a de Polignac number, because 12310030131 - 22 = 12310030127 is a prime.

It is a super-2 number, since 2×123100301312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12310030131.

It is not an unprimeable number, because it can be changed into a prime (12310030133) 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, 4373160 + ... + 4375973.

It is an arithmetic number, because the mean of its divisors is an integer number (1189882224).

Almost surely, 212310030131 is an apocalyptic number.

12310030131 is a deficient number, since it is larger than the sum of its proper divisors (6728085453).

12310030131 is an equidigital number, since it uses as much as digits as its factorization.

12310030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8749210.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 12310030131 its reverse (13103001321), we get a palindrome (25413031452).

The spelling of 12310030131 in words is "twelve billion, three hundred ten million, thirty thousand, one hundred thirty-one".

Divisors: 1 3 7 21 67 201 469 1407 8749133 26247399 61243931 183731793 586191911 1758575733 4103343377 12310030131