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245386873 = 5310145841
BaseRepresentation
bin11101010000001…
…00111001111001
3122002201221111201
432220010321321
51000304334443
640203254201
76036516424
oct1650047171
9562657451
10245386873
11116572876
126a21a361
133bab8a44
14248389bb
151682234d
hexea04e79

245386873 has 8 divisors (see below), whose sum is σ = 252497736. Its totient is φ = 238368000.

The previous prime is 245386861. The next prime is 245386909. The reversal of 245386873 is 378683542.

245386873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 146821689 + 98565184 = 12117^2 + 9928^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-245386873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245386073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17568 + ... + 28273.

It is an arithmetic number, because the mean of its divisors is an integer number (31562217).

Almost surely, 2245386873 is an apocalyptic number.

It is an amenable number.

245386873 is a deficient number, since it is larger than the sum of its proper divisors (7110863).

245386873 is a wasteful number, since it uses less digits than its factorization.

245386873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45995.

The product of its digits is 967680, while the sum is 46.

The square root of 245386873 is about 15664.8291723849. The cubic root of 245386873 is about 626.0616605419.

The spelling of 245386873 in words is "two hundred forty-five million, three hundred eighty-six thousand, eight hundred seventy-three".

Divisors: 1 53 101 5353 45841 2429573 4629941 245386873