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12431024142 = 2319920815003
BaseRepresentation
bin10111001001111001…
…00110000000001110
31012002100011110022120
423210330212000032
5200424320233032
65413303553410
7620023650615
oct134474460016
935070143276
1012431024142
1152a9a97479
1224ab15b866
1312315492b4
1485cd7a87c
154cb51162c
hex2e4f2600e

12431024142 has 32 divisors (see below), whose sum is σ = 25003987200. Its totient is φ = 4120047360.

The previous prime is 12431024131. The next prime is 12431024173. The reversal of 12431024142 is 24142013421.

It is a super-2 number, since 2×124310241422 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2482213 + ... + 2487215.

It is an arithmetic number, because the mean of its divisors is an integer number (781374600).

Almost surely, 212431024142 is an apocalyptic number.

12431024142 is an abundant number, since it is smaller than the sum of its proper divisors (12572963058).

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

12431024142 is a wasteful number, since it uses less digits than its factorization.

12431024142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12431024142 its reverse (24142013421), we get a palindrome (36573037563).

The spelling of 12431024142 in words is "twelve billion, four hundred thirty-one million, twenty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 199 398 597 1194 2081 4162 5003 6243 10006 12486 15009 30018 414119 828238 995597 1242357 1991194 2484714 2986791 5973582 10411243 20822486 31233729 62467458 2071837357 4143674714 6215512071 12431024142