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250308 = 223217409
BaseRepresentation
bin111101000111000100
3110201100200
4331013010
531002213
65210500
72061522
oct750704
9421320
10250308
11161073
12100a30
1389c16
1467312
154e273
hex3d1c4

250308 has 36 divisors (see below), whose sum is σ = 671580. Its totient is φ = 78336.

The previous prime is 250307. The next prime is 250343. The reversal of 250308 is 803052.

250308 is digitally balanced in base 2, 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 213444 + 36864 = 462^2 + 192^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 250308.

It is not an unprimeable number, because it can be changed into a prime (250301) 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, 408 + ... + 816.

It is an arithmetic number, because the mean of its divisors is an integer number (18655).

2250308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335790).

250308 is an abundant number, since it is smaller than the sum of its proper divisors (421272).

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

250308 is a wasteful number, since it uses less digits than its factorization.

250308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 250308 is about 500.3079051944. The cubic root of 250308 is about 63.0219122568.

The spelling of 250308 in words is "two hundred fifty thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 409 612 818 1227 1636 2454 3681 4908 6953 7362 13906 14724 20859 27812 41718 62577 83436 125154 250308