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245389313 = 1319993479
BaseRepresentation
bin11101010000001…
…01100000000001
3122002202001212002
432220011200001
51000304424223
640203313345
76036526511
oct1650054001
9562661762
10245389313
11116574694
126a21b855
133bab9ba0
1424839841
1516822e28
hexea05801

245389313 has 8 divisors (see below), whose sum is σ = 278174400. Its totient is φ = 214591248.

The previous prime is 245389283. The next prime is 245389337. The reversal of 245389313 is 313983542.

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 245389313 - 210 = 245388289 is a prime.

It is a super-2 number, since 2×2453893132 = 120431829869223938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245389343) 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, 496493 + ... + 496986.

It is an arithmetic number, because the mean of its divisors is an integer number (34771800).

Almost surely, 2245389313 is an apocalyptic number.

It is an amenable number.

245389313 is a deficient number, since it is larger than the sum of its proper divisors (32785087).

245389313 is a wasteful number, since it uses less digits than its factorization.

245389313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993511.

The product of its digits is 77760, while the sum is 38.

The square root of 245389313 is about 15664.9070536662. The cubic root of 245389313 is about 626.0637356127.

The spelling of 245389313 in words is "two hundred forty-five million, three hundred eighty-nine thousand, three hundred thirteen".

Divisors: 1 13 19 247 993479 12915227 18876101 245389313