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238010089 = 2237106397
BaseRepresentation
bin11100010111110…
…11111011101001
3121120212011110111
432023323323221
5441412310324
635341214321
75620023652
oct1613737351
9546764414
10238010089
11112394559
12678613a1
133a405195
1423878529
1515d66794
hexe2fbee9

238010089 has 4 divisors (see below), whose sum is σ = 238118724. Its totient is φ = 237901456.

The previous prime is 238010083. The next prime is 238010099. The reversal of 238010089 is 980010832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 221265625 + 16744464 = 14875^2 + 4092^2 .

It is a cyclic number.

It is not a de Polignac number, because 238010089 - 25 = 238010057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238010089.

It is not an unprimeable number, because it can be changed into a prime (238010083) 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 3 ways as a sum of consecutive naturals, for example, 50962 + ... + 55435.

It is an arithmetic number, because the mean of its divisors is an integer number (59529681).

Almost surely, 2238010089 is an apocalyptic number.

It is an amenable number.

238010089 is a deficient number, since it is larger than the sum of its proper divisors (108635).

238010089 is a wasteful number, since it uses less digits than its factorization.

238010089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108634.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 238010089 is about 15427.5756034446. The cubic root of 238010089 is about 619.7242000858.

The spelling of 238010089 in words is "two hundred thirty-eight million, ten thousand, eighty-nine".

Divisors: 1 2237 106397 238010089