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238283668 = 22727117123
BaseRepresentation
bin11100011001111…
…10101110010100
3121121101001202001
432030332232110
5442000034133
635351125044
75622243400
oct1614765624
9547331661
10238283668
11112561057
1267973784
133a49c86c
142390a100
1515dbc87d
hexe33eb94

238283668 has 36 divisors (see below), whose sum is σ = 491938272. Its totient is φ = 100677360.

The previous prime is 238283653. The next prime is 238283681. The reversal of 238283668 is 866382832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5355 + ... + 22477.

It is an arithmetic number, because the mean of its divisors is an integer number (13664952).

Almost surely, 2238283668 is an apocalyptic number.

238283668 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 238283668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245969136).

238283668 is an abundant number, since it is smaller than the sum of its proper divisors (253654604).

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

238283668 is a wasteful number, since it uses less digits than its factorization.

238283668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17212 (or 17203 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 238283668 is about 15436.4396154035. The cubic root of 238283668 is about 619.9615550216.

The spelling of 238283668 in words is "two hundred thirty-eight million, two hundred eighty-three thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 49 71 98 142 196 284 497 994 1988 3479 6958 13916 17123 34246 68492 119861 239722 479444 839027 1215733 1678054 2431466 3356108 4862932 8510131 17020262 34040524 59570917 119141834 238283668