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230288400 = 24335221323
BaseRepresentation
bin11011011100111…
…10110000010000
3121001022212022000
431232132300100
5432423212100
634503514000
75464263516
oct1556366020
9531285260
10230288400
11108aa00a1
1265158900
1338930634
14228284b6
151533d900
hexdb9ec10

230288400 has 120 divisors (see below), whose sum is σ = 819694560. Its totient is φ = 61407360.

The previous prime is 230288381. The next prime is 230288413. The reversal of 230288400 is 4882032.

230288400 is a `hidden beast` number, since 230 + 28 + 8 + 400 = 666.

230288400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139 + ... + 21461.

It is an arithmetic number, because the mean of its divisors is an integer number (6830788).

Almost surely, 2230288400 is an apocalyptic number.

230288400 is a gapful number since it is divisible by the number (20) 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 230288400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409847280).

230288400 is an abundant number, since it is smaller than the sum of its proper divisors (589406160).

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

230288400 is a wasteful number, since it uses less digits than its factorization.

230288400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21350 (or 21333 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 230288400 is about 15175.2561757619. The cubic root of 230288400 is about 612.9485482941.

The spelling of 230288400 in words is "two hundred thirty million, two hundred eighty-eight thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 40 45 48 50 54 60 72 75 80 90 100 108 120 135 144 150 180 200 216 225 240 270 300 360 400 432 450 540 600 675 720 900 1080 1200 1350 1800 2160 2700 3600 5400 10800 21323 42646 63969 85292 106615 127938 170584 191907 213230 255876 319845 341168 383814 426460 511752 533075 575721 639690 767628 852920 959535 1023504 1066150 1151442 1279380 1535256 1599225 1705840 1919070 2132300 2302884 2558760 2878605 3070512 3198450 3838140 4264600 4605768 4797675 5117520 5757210 6396900 7676280 8529200 9211536 9595350 11514420 12793800 14393025 15352560 19190700 23028840 25587600 28786050 38381400 46057680 57572100 76762800 115144200 230288400