Search a number
-
+
1272284943109 = 10718116565717
BaseRepresentation
bin10010100000111010000…
…101111001001100000101
311111121222201120200112121
4102200322011321030011
5131321114421134414
62412251333445541
7160630256403265
oct22407205711405
94447881520477
101272284943109
114506337557a4
121866b17a08b1
1392c8c234cab
14458167ad7a5
1523165be6724
hex1283a179305

1272284943109 has 8 divisors (see below), whose sum is σ = 1284884749728. Its totient is φ = 1259698271760.

The previous prime is 1272284943079. The next prime is 1272284943121. The reversal of 1272284943109 is 9013494822721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1272284943109 - 213 = 1272284934917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272284943169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3089082 + ... + 3476635.

It is an arithmetic number, because the mean of its divisors is an integer number (160610593716).

Almost surely, 21272284943109 is an apocalyptic number.

It is an amenable number.

1272284943109 is a deficient number, since it is larger than the sum of its proper divisors (12599806619).

1272284943109 is a wasteful number, since it uses less digits than its factorization.

1272284943109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6567635.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 1272284943109 in words is "one trillion, two hundred seventy-two billion, two hundred eighty-four million, nine hundred forty-three thousand, one hundred nine".

Divisors: 1 107 1811 193777 6565717 702531719 11890513487 1272284943109