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234881109 = 32160116301
BaseRepresentation
bin11100000000000…
…00000001010101
3121100222012022100
432000000001111
5440112143414
635150152313
75551312401
oct1600000125
9540865270
10234881109
11110647721
12667b2699
133987ac08
14232a2101
1515949609
hexe000055

234881109 has 12 divisors (see below), whose sum is σ = 339505452. Its totient is φ = 156480000.

The previous prime is 234881099. The next prime is 234881111. The reversal of 234881109 is 901188432.

It can be written as a sum of positive squares in 2 ways, for example, as 222666084 + 12215025 = 14922^2 + 3495^2 .

It is not a de Polignac number, because 234881109 - 27 = 234880981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234881189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6259 + ... + 22559.

It is an arithmetic number, because the mean of its divisors is an integer number (28292121).

Almost surely, 2234881109 is an apocalyptic number.

It is an amenable number.

234881109 is a deficient number, since it is larger than the sum of its proper divisors (104624343).

234881109 is a wasteful number, since it uses less digits than its factorization.

234881109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17908 (or 17905 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 234881109 is about 15325.8314293222. The cubic root of 234881109 is about 616.9964940562.

The spelling of 234881109 in words is "two hundred thirty-four million, eight hundred eighty-one thousand, one hundred nine".

Divisors: 1 3 9 1601 4803 14409 16301 48903 146709 26097901 78293703 234881109