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225795200 = 2752411721
BaseRepresentation
bin11010111010101…
…01110010000000
3120201212120210012
431131111302000
5430300421300
634223324052
75411141021
oct1535256200
9521776705
10225795200
11106501304
1263750628
1337a19437
1421db8c48
1514c52435
hexd755c80

225795200 has 96 divisors (see below), whose sum is σ = 571721220. Its totient is φ = 88064000.

The previous prime is 225795197. The next prime is 225795203. The reversal of 225795200 is 2597522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225795197) and next prime (225795203).

It can be written as a sum of positive squares in 6 ways, for example, as 49224256 + 176570944 = 7016^2 + 13288^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225795203) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 130340 + ... + 132060.

Almost surely, 2225795200 is an apocalyptic number.

225795200 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 225795200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285860610).

225795200 is an abundant number, since it is smaller than the sum of its proper divisors (345926020).

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

225795200 is a wasteful number, since it uses less digits than its factorization.

225795200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786 (or 1769 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 225795200 is about 15026.4832878488. The cubic root of 225795200 is about 608.9358855357.

The spelling of 225795200 in words is "two hundred twenty-five million, seven hundred ninety-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 128 160 164 200 205 320 328 400 410 640 656 800 820 1025 1312 1600 1640 1721 2050 2624 3200 3280 3442 4100 5248 6560 6884 8200 8605 13120 13768 16400 17210 26240 27536 32800 34420 43025 55072 65600 68840 70561 86050 110144 131200 137680 141122 172100 220288 275360 282244 344200 352805 550720 564488 688400 705610 1101440 1128976 1376800 1411220 1764025 2257952 2753600 2822440 3528050 4515904 5507200 5644880 7056100 9031808 11289760 14112200 22579520 28224400 45159040 56448800 112897600 225795200