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11274266881 = 79939715187
BaseRepresentation
bin10100111111111111…
…11010100100000001
31002002201112002200001
422133333322210001
5141042203020011
65102422400001
7546246454513
oct123777724401
932081462601
1011274266881
114866036639
122227890001
1310a89b5647
1478d4a5bb3
1545ebb87c1
hex29fffa901

11274266881 has 8 divisors (see below), whose sum is σ = 11418945920. Its totient is φ = 11129637168.

The previous prime is 11274266851. The next prime is 11274266909. The reversal of 11274266881 is 18866247211.

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 11274266881 - 29 = 11274266369 is a prime.

It is a super-2 number, since 2×112742668812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11274266831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734770 + ... + 749956.

It is an arithmetic number, because the mean of its divisors is an integer number (1427368240).

Almost surely, 211274266881 is an apocalyptic number.

It is an amenable number.

11274266881 is a deficient number, since it is larger than the sum of its proper divisors (144679039).

11274266881 is an equidigital number, since it uses as much as digits as its factorization.

11274266881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24663.

The product of its digits is 258048, while the sum is 46.

The spelling of 11274266881 in words is "eleven billion, two hundred seventy-four million, two hundred sixty-six thousand, eight hundred eighty-one".

Divisors: 1 79 9397 15187 742363 1199773 142712239 11274266881