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249894 = 23213883
BaseRepresentation
bin111101000000100110
3110200210100
4331000212
530444034
65204530
72060361
oct750046
9420710
10249894
11160827
12100746
1389988
14670d8
154e099
hex3d026

249894 has 12 divisors (see below), whose sum is σ = 541476. Its totient is φ = 83292.

The previous prime is 249881. The next prime is 249911. The reversal of 249894 is 498942.

It is a happy number.

It is a super-2 number, since 2×2498942 = 124894022472, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249894.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6924 + ... + 6959.

It is an arithmetic number, because the mean of its divisors is an integer number (45123).

2249894 is an apocalyptic number.

249894 is an abundant number, since it is smaller than the sum of its proper divisors (291582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249894 is a wasteful number, since it uses less digits than its factorization.

249894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13891 (or 13888 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 249894 is about 499.8939887616. The cubic root of 249894 is about 62.9871477940.

The spelling of 249894 in words is "two hundred forty-nine thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 13883 27766 41649 83298 124947 249894