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12430431142 = 219437607363
BaseRepresentation
bin10111001001110100…
…10101001110100110
31012002022001022212121
423210322111032212
5200424142244032
65413243140154
7620015631013
oct134472251646
935068038777
1012430431142
1152a9721998
1224aab1465a
13123139c3cc
1485cc6470a
154cb445a97
hex2e4e953a6

12430431142 has 16 divisors (see below), whose sum is σ = 20083440960. Its totient is φ = 5751165672.

The previous prime is 12430431109. The next prime is 12430431151. The reversal of 12430431142 is 24113403421.

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, 3802048 + ... + 3805315.

It is an arithmetic number, because the mean of its divisors is an integer number (1255215060).

Almost surely, 212430431142 is an apocalyptic number.

12430431142 is a deficient number, since it is larger than the sum of its proper divisors (7653009818).

12430431142 is a wasteful number, since it uses less digits than its factorization.

12430431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607427.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12430431142 its reverse (24113403421), we get a palindrome (36543834563).

The spelling of 12430431142 in words is "twelve billion, four hundred thirty million, four hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 19 38 43 86 817 1634 7607363 15214726 144539897 289079794 327116609 654233218 6215215571 12430431142