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245728298 = 2472925981
BaseRepresentation
bin11101010010110…
…00010000101010
3122010101021212002
432221120100222
51000401301143
640214451002
76042441014
oct1651302052
9563337762
10245728298
11116786342
126a363a62
133bba827a
14248c71b4
151688d5b8
hexea5842a

245728298 has 8 divisors (see below), whose sum is σ = 368684580. Its totient is φ = 122833440.

The previous prime is 245728283. The next prime is 245728303. The reversal of 245728298 is 892827542.

245728298 is digitally balanced in base 3, 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 2 ways, for example, as 223891369 + 21836929 = 14963^2 + 4673^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3533 + ... + 22448.

Almost surely, 2245728298 is an apocalyptic number.

245728298 is a deficient number, since it is larger than the sum of its proper divisors (122956282).

245728298 is a wasteful number, since it uses less digits than its factorization.

245728298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30712.

The product of its digits is 645120, while the sum is 47.

The square root of 245728298 is about 15675.7232050072. The cubic root of 245728298 is about 626.3518880230.

The spelling of 245728298 in words is "two hundred forty-five million, seven hundred twenty-eight thousand, two hundred ninety-eight".

Divisors: 1 2 4729 9458 25981 51962 122864149 245728298