Search a number
-
+
72241200 = 2433526689
BaseRepresentation
bin1000100111001…
…01000000110000
312000221020022000
410103211000300
5121443204300
611100214000
71535016513
oct423450060
9160836260
1072241200
1137861979
122023a300
1311c74995
149846d7a
15651ec00
hex44e5030

72241200 has 120 divisors (see below), whose sum is σ = 257163600. Its totient is φ = 19261440.

The previous prime is 72241199. The next prime is 72241217. The reversal of 72241200 is 214227.

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 (18).

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, 7456 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (2143030).

Almost surely, 272241200 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 72241200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128581800).

72241200 is an abundant number, since it is smaller than the sum of its proper divisors (184922400).

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

72241200 is a wasteful number, since it uses less digits than its factorization.

72241200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6716 (or 6699 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 72241200 is about 8499.4823371780. The cubic root of 72241200 is about 416.4807988777.

Adding to 72241200 its reverse (214227), we get a palindrome (72455427).

The spelling of 72241200 in words is "seventy-two million, two hundred forty-one thousand, two 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 6689 10800 13378 20067 26756 33445 40134 53512 60201 66890 80268 100335 107024 120402 133780 160536 167225 180603 200670 240804 267560 301005 321072 334450 361206 401340 481608 501675 535120 602010 668900 722412 802680 903015 963216 1003350 1204020 1337800 1444824 1505025 1605360 1806030 2006700 2408040 2675600 2889648 3010050 3612060 4013400 4515075 4816080 6020100 7224120 8026800 9030150 12040200 14448240 18060300 24080400 36120600 72241200