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12431130434 = 259731443131
BaseRepresentation
bin10111001001111001…
…11111111101000010
31012002100100212010022
423210330333331002
5200424332133214
65413310133442
7620024602532
oct134474777502
935070325108
1012431130434
1152aa05a318
1224ab1b1282
1312315857a8
1485cda74c2
154cb532d8e
hex2e4f3ff42

12431130434 has 16 divisors (see below), whose sum is σ = 19222518240. Its totient is φ = 6026510880.

The previous prime is 12431130433. The next prime is 12431130449. The reversal of 12431130434 is 43403113421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12431130433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712952 + ... + 730179.

It is an arithmetic number, because the mean of its divisors is an integer number (1201407390).

Almost surely, 212431130434 is an apocalyptic number.

12431130434 is a deficient number, since it is larger than the sum of its proper divisors (6791387806).

12431130434 is a wasteful number, since it uses less digits than its factorization.

12431130434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443265.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12431130434 its reverse (43403113421), we get a palindrome (55834243855).

The spelling of 12431130434 in words is "twelve billion, four hundred thirty-one million, one hundred thirty thousand, four hundred thirty-four".

Divisors: 1 2 59 73 118 146 4307 8614 1443131 2886262 85144729 105348563 170289458 210697126 6215565217 12431130434