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230208768 = 2832412437
BaseRepresentation
bin11011011100010…
…11010100000000
3121001011211001200
431232023110000
5432413140033
634502101200
75463512406
oct1556132400
9531154050
10230208768
11108a46289
126511a800
133890330a
1422807476
1515325013
hexdb8b500

230208768 has 108 divisors (see below), whose sum is σ = 680216628. Its totient is φ = 74833920.

The previous prime is 230208761. The next prime is 230208791. The reversal of 230208768 is 867802032.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 112529664 + 117679104 = 10608^2 + 10848^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230208761) 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, 93246 + ... + 95682.

Almost surely, 2230208768 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 230208768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340108314).

230208768 is an abundant number, since it is smaller than the sum of its proper divisors (450007860).

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

230208768 is a wasteful number, since it uses less digits than its factorization.

230208768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500 (or 2483 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 230208768 is about 15172.6322040706. The cubic root of 230208768 is about 612.8778891468.

The spelling of 230208768 in words is "two hundred thirty million, two hundred eight thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 41 48 64 72 82 96 123 128 144 164 192 246 256 288 328 369 384 492 576 656 738 768 984 1152 1312 1476 1968 2304 2437 2624 2952 3936 4874 5248 5904 7311 7872 9748 10496 11808 14622 15744 19496 21933 23616 29244 31488 38992 43866 47232 58488 77984 87732 94464 99917 116976 155968 175464 199834 233952 299751 311936 350928 399668 467904 599502 623872 701856 799336 899253 935808 1199004 1403712 1598672 1798506 1871616 2398008 2807424 3197344 3597012 4796016 5614848 6394688 7194024 9592032 12789376 14388048 19184064 25578752 28776096 38368128 57552192 76736256 115104384 230208768