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243089107 = 2931126953
BaseRepresentation
bin11100111110100…
…11111011010011
3121221102012120021
432133103323103
5444212322412
640042124311
76011136412
oct1637237323
9557365507
10243089107
11115243498
12694b0697
133b492c11
14243db479
151651b607
hexe7d3ed3

243089107 has 8 divisors (see below), whose sum is σ = 252289440. Its totient is φ = 233943360.

The previous prime is 243089089. The next prime is 243089117. The reversal of 243089107 is 701980342.

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 243089107 - 211 = 243087059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243089117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458 + ... + 22495.

It is an arithmetic number, because the mean of its divisors is an integer number (31536180).

Almost surely, 2243089107 is an apocalyptic number.

243089107 is a deficient number, since it is larger than the sum of its proper divisors (9200333).

243089107 is a wasteful number, since it uses less digits than its factorization.

243089107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27293.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 243089107 is about 15591.3151145117. The cubic root of 243089107 is about 624.1014133263.

The spelling of 243089107 in words is "two hundred forty-three million, eighty-nine thousand, one hundred seven".

Divisors: 1 29 311 9019 26953 781637 8382383 243089107