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225250272 = 253213173539
BaseRepresentation
bin11010110110100…
…00101111100000
3120200211220021200
431123100233200
5430131002042
634203521200
75403411222
oct1533205740
9520756250
10225250272
11106169955
1263529200
13378883b0
1421cb6412
1514b95c4c
hexd6d0be0

225250272 has 144 divisors (see below), whose sum is σ = 730613520. Its totient is φ = 65212416.

The previous prime is 225250253. The next prime is 225250283. The reversal of 225250272 is 272052522.

225250272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 61879 + ... + 65417.

It is an arithmetic number, because the mean of its divisors is an integer number (5073705).

Almost surely, 2225250272 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 225250272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365306760).

225250272 is an abundant number, since it is smaller than the sum of its proper divisors (505363248).

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

225250272 is a wasteful number, since it uses less digits than its factorization.

225250272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3574 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 225250272 is about 15008.3400814347. The cubic root of 225250272 is about 608.4456278260.

It can be divided in two parts, 225250 and 272, that added together give a palindrome (225522).

The spelling of 225250272 in words is "two hundred twenty-five million, two hundred fifty thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 17 18 24 26 32 34 36 39 48 51 52 68 72 78 96 102 104 117 136 144 153 156 204 208 221 234 272 288 306 312 408 416 442 468 544 612 624 663 816 884 936 1224 1248 1326 1632 1768 1872 1989 2448 2652 3536 3539 3744 3978 4896 5304 7072 7078 7956 10608 10617 14156 15912 21216 21234 28312 31824 31851 42468 46007 56624 60163 63648 63702 84936 92014 113248 120326 127404 138021 169872 180489 184028 240652 254808 276042 339744 360978 368056 414063 481304 509616 541467 552084 721956 736112 782119 828126 962608 1019232 1082934 1104168 1443912 1472224 1564238 1656252 1925216 2165868 2208336 2346357 2887824 3128476 3312504 4331736 4416672 4692714 5775648 6256952 6625008 7039071 8663472 9385428 12513904 13250016 14078142 17326944 18770856 25027808 28156284 37541712 56312568 75083424 112625136 225250272