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238868 = 22719449
BaseRepresentation
bin111010010100010100
3110010122222
4322110110
530120433
65041512
72013260
oct722424
9403588
10238868
11153513
12b6298
1384956
14630a0
154ab98
hex3a514

238868 has 24 divisors (see below), whose sum is σ = 504000. Its totient is φ = 96768.

The previous prime is 238859. The next prime is 238877. The reversal of 238868 is 868832.

It is an interprime number because it is at equal distance from previous prime (238859) and next prime (238877).

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 238868.

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, 308 + ... + 756.

It is an arithmetic number, because the mean of its divisors is an integer number (21000).

2238868 is an apocalyptic number.

238868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252000).

238868 is an abundant number, since it is smaller than the sum of its proper divisors (265132).

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

238868 is a wasteful number, since it uses less digits than its factorization.

238868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 477 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 238868 is about 488.7412403307. The cubic root of 238868 is about 62.0467909011.

The spelling of 238868 in words is "two hundred thirty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 449 532 898 1796 3143 6286 8531 12572 17062 34124 59717 119434 238868