Search a number
-
+
12112131302 = 2163179207563
BaseRepresentation
bin10110100011111000…
…00111010011100110
31011021010010000120122
423101330013103212
5144301201200202
65321513001542
7606102263105
oct132174072346
934233100518
1012112131302
115155a89577
1224203b32b2
1311b0464ccb
1482c88a03c
154ad51e9a2
hex2d1f074e6

12112131302 has 16 divisors (see below), whose sum is σ = 18381867840. Its totient is φ = 5985257832.

The previous prime is 12112131259. The next prime is 12112131313. The reversal of 12112131302 is 20313121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45428 + ... + 162135.

It is an arithmetic number, because the mean of its divisors is an integer number (1148866740).

Almost surely, 212112131302 is an apocalyptic number.

12112131302 is a deficient number, since it is larger than the sum of its proper divisors (6269736538).

12112131302 is a wasteful number, since it uses less digits than its factorization.

12112131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207907.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12112131302 its reverse (20313121121), we get a palindrome (32425252423).

The spelling of 12112131302 in words is "twelve billion, one hundred twelve million, one hundred thirty-one thousand, three hundred two".

Divisors: 1 2 163 179 326 358 29177 58354 207563 415126 33832769 37153777 67665538 74307554 6056065651 12112131302