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22871842161 = 3721371135699
BaseRepresentation
bin10101010011010001…
…001001110101110001
32012000222101222002020
4111103101021311301
5333320142422121
614301314542053
71436533310400
oct252321116561
965028358066
1022871842161
1197776165a3
124523897929
13220666a01c
14116d88b637
158dce471c6
hex553449d71

22871842161 has 24 divisors (see below), whose sum is σ = 35733664800. Its totient is φ = 12974213952.

The previous prime is 22871842159. The next prime is 22871842187. The reversal of 22871842161 is 16124817822.

It is not a de Polignac number, because 22871842161 - 21 = 22871842159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22871842561) 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 23 ways as a sum of consecutive naturals, for example, 547711 + ... + 587988.

It is an arithmetic number, because the mean of its divisors is an integer number (1488902700).

Almost surely, 222871842161 is an apocalyptic number.

22871842161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22871842161 is a deficient number, since it is larger than the sum of its proper divisors (12861822639).

22871842161 is a wasteful number, since it uses less digits than its factorization.

22871842161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135853 (or 1135846 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The spelling of 22871842161 in words is "twenty-two billion, eight hundred seventy-one million, eight hundred forty-two thousand, one hundred sixty-one".

Divisors: 1 3 7 21 49 137 147 411 959 2877 6713 20139 1135699 3407097 7949893 23849679 55649251 155590763 166947753 466772289 1089135341 3267406023 7623947387 22871842161