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225578848 = 251121723149
BaseRepresentation
bin11010111001000…
…00111101100000
3120201110121000011
431130200331200
5430222010343
634214534304
75406250165
oct1534407540
9521417004
10225578848
11106373800
1263667394
1337971b11
1421d6006c
1514c0d29d
hexd720f60

225578848 has 144 divisors (see below), whose sum is σ = 542959200. Its totient is φ = 91688960.

The previous prime is 225578819. The next prime is 225578861. The reversal of 225578848 is 848875522.

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, 1513878 + ... + 1514026.

It is an arithmetic number, because the mean of its divisors is an integer number (3770550).

Almost surely, 2225578848 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 225578848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271479600).

225578848 is an abundant number, since it is smaller than the sum of its proper divisors (317380352).

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

225578848 is a wasteful number, since it uses less digits than its factorization.

225578848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 202 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 49.

The square root of 225578848 is about 15019.2825394557. The cubic root of 225578848 is about 608.7413337215.

The spelling of 225578848 in words is "two hundred twenty-five million, five hundred seventy-eight thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 11 16 17 22 23 32 34 44 46 68 88 92 121 136 149 176 184 187 242 253 272 298 352 368 374 391 484 506 544 596 736 748 782 968 1012 1192 1496 1564 1639 1936 2024 2057 2384 2533 2783 2992 3128 3278 3427 3872 4048 4114 4301 4768 5066 5566 5984 6256 6556 6854 8096 8228 8602 10132 11132 12512 13112 13708 16456 17204 18029 20264 22264 26224 27416 27863 32912 34408 36058 37697 40528 44528 47311 52448 54832 55726 58259 65824 68816 72116 75394 81056 89056 94622 109664 111452 116518 137632 144232 150788 189244 222904 233036 288464 301576 306493 378488 414667 445808 466072 576928 603152 612986 640849 756976 829334 891616 932144 1206304 1225972 1281698 1513952 1658668 1864288 2451944 2563396 3317336 4903888 5126792 6634672 7049339 9807776 10253584 13269344 14098678 20507168 28197356 56394712 112789424 225578848