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250085 = 5114547
BaseRepresentation
bin111101000011100101
3110201001102
4331003211
531000320
65205445
72061053
oct750345
9421042
10250085
11160990
12100885
1389aa4
14671d3
154e175
hex3d0e5

250085 has 8 divisors (see below), whose sum is σ = 327456. Its totient is φ = 181840.

The previous prime is 250073. The next prime is 250091. The reversal of 250085 is 580052.

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

It is not a de Polignac number, because 250085 - 212 = 245989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219 + ... + 2328.

It is an arithmetic number, because the mean of its divisors is an integer number (40932).

250085 is a Friedman number, since it can be written as 500^2+85, using all its digits and the basic arithmetic operations.

2250085 is an apocalyptic number.

It is an amenable number.

250085 is a deficient number, since it is larger than the sum of its proper divisors (77371).

250085 is a wasteful number, since it uses less digits than its factorization.

250085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 250085 is about 500.0849927762. The cubic root of 250085 is about 63.0031912384.

The spelling of 250085 in words is "two hundred fifty thousand, eighty-five".

Divisors: 1 5 11 55 4547 22735 50017 250085