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12254431422 = 2312716081931
BaseRepresentation
bin10110110100110101…
…11100100010111110
31011122000212121122110
423122122330202332
5200044113301142
65343554554450
7612450643212
oct133232744276
934560777573
1012254431422
115219341782
12245bb98a26
131203a9926c
1484372c942
154bac7c99c
hex2da6bc8be

12254431422 has 16 divisors (see below), whose sum is σ = 24701847552. Its totient is φ = 4052646360.

The previous prime is 12254431417. The next prime is 12254431433. The reversal of 12254431422 is 22413445221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12254431422.

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, 8040204 + ... + 8041727.

It is an arithmetic number, because the mean of its divisors is an integer number (1543865472).

Almost surely, 212254431422 is an apocalyptic number.

12254431422 is an abundant number, since it is smaller than the sum of its proper divisors (12447416130).

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

12254431422 is a wasteful number, since it uses less digits than its factorization.

12254431422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16082063.

The product of its digits is 15360, while the sum is 30.

Adding to 12254431422 its reverse (22413445221), we get a palindrome (34667876643).

The spelling of 12254431422 in words is "twelve billion, two hundred fifty-four million, four hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 127 254 381 762 16081931 32163862 48245793 96491586 2042405237 4084810474 6127215711 12254431422