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231064800 = 25352432239
BaseRepresentation
bin11011100010111…
…00010011100000
3121002210022022120
431301130103200
5433123033200
634532304240
75504006211
oct1561342340
9532708276
10231064800
1110948044a
1265472080
1338b42b45
142298b408
15154439a0
hexdc5c4e0

231064800 has 144 divisors (see below), whose sum is σ = 769950720. Its totient is φ = 60157440.

The previous prime is 231064759. The next prime is 231064819. The reversal of 231064800 is 8460132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102081 + ... + 104319.

It is an arithmetic number, because the mean of its divisors is an integer number (5346880).

Almost surely, 2231064800 is an apocalyptic number.

231064800 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 231064800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384975360).

231064800 is an abundant number, since it is smaller than the sum of its proper divisors (538885920).

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

231064800 is a wasteful number, since it uses less digits than its factorization.

231064800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305 (or 2292 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 231064800 is about 15200.8157675830. The cubic root of 231064800 is about 613.6366122458.

The spelling of 231064800 in words is "two hundred thirty-one million, sixty-four thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 43 48 50 60 75 80 86 96 100 120 129 150 160 172 200 215 240 258 300 344 400 430 480 516 600 645 688 800 860 1032 1075 1200 1290 1376 1720 2064 2150 2239 2400 2580 3225 3440 4128 4300 4478 5160 6450 6717 6880 8600 8956 10320 11195 12900 13434 17200 17912 20640 22390 25800 26868 33585 34400 35824 44780 51600 53736 55975 67170 71648 89560 96277 103200 107472 111950 134340 167925 179120 192554 214944 223900 268680 288831 335850 358240 385108 447800 481385 537360 577662 671700 770216 895600 962770 1074720 1155324 1343400 1444155 1540432 1791200 1925540 2310648 2406925 2686800 2888310 3080864 3851080 4621296 4813850 5373600 5776620 7220775 7702160 9242592 9627700 11553240 14441550 15404320 19255400 23106480 28883100 38510800 46212960 57766200 77021600 115532400 231064800