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8244000 = 253253229
BaseRepresentation
bin11111011100101100100000
3120111211122100
4133130230200
54102302000
6452410400
7130033662
oct37345440
916454570
108244000
114720926
122916a00
13192850b
141148532
15acca00
hex7dcb20

8244000 has 144 divisors (see below), whose sum is σ = 29385720. Its totient is φ = 2188800.

The previous prime is 8243971. The next prime is 8244001. The reversal of 8244000 is 4428.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4511376 + 3732624 = 2124^2 + 1932^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (8244001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35886 + ... + 36114.

Almost surely, 28244000 is an apocalyptic number.

8244000 is a gapful number since it is divisible by the number (80) 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 8244000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14692860).

8244000 is an abundant number, since it is smaller than the sum of its proper divisors (21141720).

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

8244000 is a wasteful number, since it uses less digits than its factorization.

8244000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 8244000 is about 2871.2366673613. The cubic root of 8244000 is about 202.0130044237.

Adding to 8244000 its reverse (4428), we get a palindrome (8248428).

The spelling of 8244000 in words is "eight million, two hundred forty-four thousand".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 72 75 80 90 96 100 120 125 144 150 160 180 200 225 229 240 250 288 300 360 375 400 450 458 480 500 600 687 720 750 800 900 916 1000 1125 1145 1200 1374 1440 1500 1800 1832 2000 2061 2250 2290 2400 2748 3000 3435 3600 3664 4000 4122 4500 4580 5496 5725 6000 6870 7200 7328 8244 9000 9160 10305 10992 11450 12000 13740 16488 17175 18000 18320 20610 21984 22900 27480 28625 32976 34350 36000 36640 41220 45800 51525 54960 57250 65952 68700 82440 85875 91600 103050 109920 114500 137400 164880 171750 183200 206100 229000 257625 274800 329760 343500 412200 458000 515250 549600 687000 824400 916000 1030500 1374000 1648800 2061000 2748000 4122000 8244000