Base | Representation |
---|---|
bin | 11101110011111… |
… | …10001101101001 |
3 | 122102120021121021 |
4 | 32321332031221 |
5 | 1003004444212 |
6 | 40452012441 |
7 | 6124425355 |
oct | 1671761551 |
9 | 572507537 |
10 | 250078057 |
11 | 119187389 |
12 | 6b901121 |
13 | 3ca6c0a8 |
14 | 252da465 |
15 | 16e4c307 |
hex | ee7e369 |
250078057 has 12 divisors (see below), whose sum is σ = 275417280. Its totient is φ = 226607832.
The previous prime is 250078043. The next prime is 250078061. The reversal of 250078057 is 750870052.
It is not a de Polignac number, because 250078057 - 211 = 250076009 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (250078027) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6757 + ... + 23362.
It is an arithmetic number, because the mean of its divisors is an integer number (22951440).
Almost surely, 2250078057 is an apocalyptic number.
It is an amenable number.
250078057 is a deficient number, since it is larger than the sum of its proper divisors (25339223).
250078057 is a wasteful number, since it uses less digits than its factorization.
250078057 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30180 (or 30161 counting only the distinct ones).
The product of its (nonzero) digits is 19600, while the sum is 34.
The square root of 250078057 is about 15813.8564872709. The cubic root of 250078057 is about 630.0260818966.
The spelling of 250078057 in words is "two hundred fifty million, seventy-eight thousand, fifty-seven".
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