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248093189 = 1714593717
BaseRepresentation
bin11101100100110…
…01101000000101
3122021211102212122
432302121220011
51002002440224
640341255325
76101520521
oct1662315005
9567742778
10248093189
111180510a3
126b104545
133c525806
1424d40d81
1516ba915e
hexec99a05

248093189 has 4 divisors (see below), whose sum is σ = 262686924. Its totient is φ = 233499456.

The previous prime is 248093179. The next prime is 248093207. The reversal of 248093189 is 981390842.

It is a happy number.

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 164224225 + 83868964 = 12815^2 + 9158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-248093189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248093129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7296842 + ... + 7296875.

It is an arithmetic number, because the mean of its divisors is an integer number (65671731).

Almost surely, 2248093189 is an apocalyptic number.

It is an amenable number.

248093189 is a deficient number, since it is larger than the sum of its proper divisors (14593735).

248093189 is a wasteful number, since it uses less digits than its factorization.

248093189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14593734.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 248093189 is about 15750.9742238377. The cubic root of 248093189 is about 628.3548147423.

The spelling of 248093189 in words is "two hundred forty-eight million, ninety-three thousand, one hundred eighty-nine".

Divisors: 1 17 14593717 248093189