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289378200 = 233523071571
BaseRepresentation
bin10001001111111…
…000111110011000
3202011111221021010
4101033320332120
51043040100300
644414213520
710112450136
oct2117707630
9664457233
10289378200
1113938a141
1280ab42a0
1347c4c207
142a60a756
151a611a50
hex113f8f98

289378200 has 96 divisors (see below), whose sum is σ = 900567360. Its totient is φ = 76867200.

The previous prime is 289378181. The next prime is 289378213. The reversal of 289378200 is 2873982.

It is a congruent number.

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, 183415 + ... + 184985.

It is an arithmetic number, because the mean of its divisors is an integer number (9380910).

Almost surely, 2289378200 is an apocalyptic number.

289378200 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 289378200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450283680).

289378200 is an abundant number, since it is smaller than the sum of its proper divisors (611189160).

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

289378200 is a wasteful number, since it uses less digits than its factorization.

289378200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1888 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 289378200 is about 17011.1198925879. The cubic root of 289378200 is about 661.4371804149.

The spelling of 289378200 in words is "two hundred eighty-nine million, three hundred seventy-eight thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 307 600 614 921 1228 1535 1571 1842 2456 3070 3142 3684 4605 4713 6140 6284 7368 7675 7855 9210 9426 12280 12568 15350 15710 18420 18852 23025 23565 30700 31420 36840 37704 39275 46050 47130 61400 62840 78550 92100 94260 117825 157100 184200 188520 235650 314200 471300 482297 942600 964594 1446891 1929188 2411485 2893782 3858376 4822970 5787564 7234455 9645940 11575128 12057425 14468910 19291880 24114850 28937820 36172275 48229700 57875640 72344550 96459400 144689100 289378200