Search a number
-
+
12271110847 = 8310113910531
BaseRepresentation
bin10110110110110101…
…00100101010111111
31011200012021000111221
423123122210222333
5200112401021342
65345352254211
7613042502242
oct133332445277
934605230457
1012271110847
1152277a4226
1224656a1367
131207389148
14845a31259
154bc474a67
hex2db6a4abf

12271110847 has 16 divisors (see below), whose sum is σ = 12633344640. Its totient is φ = 11915748000.

The previous prime is 12271110823. The next prime is 12271110883. The reversal of 12271110847 is 74801117221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12271110847 is a prime.

It is a super-2 number, since 2×122711108472 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271114847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1159972 + ... + 1170502.

It is an arithmetic number, because the mean of its divisors is an integer number (789584040).

Almost surely, 212271110847 is an apocalyptic number.

12271110847 is a deficient number, since it is larger than the sum of its proper divisors (362233793).

12271110847 is a wasteful number, since it uses less digits than its factorization.

12271110847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10854.

The product of its (nonzero) digits is 6272, while the sum is 34.

The spelling of 12271110847 in words is "twelve billion, two hundred seventy-one million, one hundred ten thousand, eight hundred forty-seven".

Divisors: 1 83 101 139 8383 10531 11537 14039 874073 1063631 1165237 1463809 88281373 121496147 147844709 12271110847