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1272112449329 = 1996392524871
BaseRepresentation
bin10010100000101111110…
…011111000011100110001
311111121112201000002120002
4102200233303320130301
5131320241241334304
62412222252355345
7160623063260051
oct22405763703461
94447481002502
101272112449329
1145055534a657
12186663a75b55
1392c6258b877
14457db90b561
15231559c231e
hex1282fcf8731

1272112449329 has 4 divisors (see below), whose sum is σ = 1278504974400. Its totient is φ = 1265719924260.

The previous prime is 1272112449319. The next prime is 1272112449373. The reversal of 1272112449329 is 9239442112721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1272112449329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1272112449319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3196262237 + ... + 3196262634.

It is an arithmetic number, because the mean of its divisors is an integer number (319626243600).

Almost surely, 21272112449329 is an apocalyptic number.

It is an amenable number.

1272112449329 is a deficient number, since it is larger than the sum of its proper divisors (6392525071).

1272112449329 is an equidigital number, since it uses as much as digits as its factorization.

1272112449329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392525070.

The product of its digits is 435456, while the sum is 47.

The spelling of 1272112449329 in words is "one trillion, two hundred seventy-two billion, one hundred twelve million, four hundred forty-nine thousand, three hundred twenty-nine".

Divisors: 1 199 6392524871 1272112449329