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12168143743 = 717322412
BaseRepresentation
bin10110101010100011…
…10010001101111111
31011102000111202012111
423111101302031333
5144410021044433
65331233314451
7610352341510
oct132521621577
934360452174
1012168143743
115184666548
122437105a27
1311bbc46c72
148360aaa07
154b33d5dcd
hex2d547237f

12168143743 has 18 divisors (see below), whose sum is σ = 14045578152. Its totient is φ = 10326522240.

The previous prime is 12168143731. The next prime is 12168143753. The reversal of 12168143743 is 34734186121.

It is not a de Polignac number, because 12168143743 - 25 = 12168143711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12168143696 and 12168143705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12168143753) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 50490103 + ... + 50490343.

Almost surely, 212168143743 is an apocalyptic number.

12168143743 is a deficient number, since it is larger than the sum of its proper divisors (1877434409).

12168143743 is an frugal number, since it uses more digits than its factorization.

12168143743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 421 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The spelling of 12168143743 in words is "twelve billion, one hundred sixty-eight million, one hundred forty-three thousand, seven hundred forty-three".

Divisors: 1 7 173 241 1211 1687 29929 41693 58081 209503 291851 406567 7212889 10048013 50490223 70336091 1738306249 12168143743