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12443773607 = 19271485497
BaseRepresentation
bin10111001011011010…
…01110101010100111
31012010020011012021222
423211231032222213
5200441101223412
65414441130555
7620240221226
oct134555165247
935106135258
1012443773607
115306205321
1224b3489a5b
131234091465
14860938cbd
154cc6ce072
hex2e5b4eaa7

12443773607 has 12 divisors (see below), whose sum is σ = 13318181136. Its totient is φ = 11622774240.

The previous prime is 12443773583. The next prime is 12443773673. The reversal of 12443773607 is 70637734421.

It is not a de Polignac number, because 12443773607 - 28 = 12443773351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443773907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217118 + ... + 268379.

It is an arithmetic number, because the mean of its divisors is an integer number (1109848428).

Almost surely, 212443773607 is an apocalyptic number.

12443773607 is a deficient number, since it is larger than the sum of its proper divisors (874407529).

12443773607 is an equidigital number, since it uses as much as digits as its factorization.

12443773607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485606 (or 485587 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 12443773607 in words is "twelve billion, four hundred forty-three million, seven hundred seventy-three thousand, six hundred seven".

Divisors: 1 19 71 361 1349 25631 485497 9224443 34470287 175264417 654935453 12443773607