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225848448 = 2732724001
BaseRepresentation
bin11010111011000…
…10110010000000
3120201222021211100
431131202302000
5430304122243
634224414400
75411452200
oct1535426200
9521867740
10225848448
11106538311
1263777400
1337a37747
1421dd0400
1514c630d3
hexd762c80

225848448 has 144 divisors (see below), whose sum is σ = 756197910. Its totient is φ = 64512000.

The previous prime is 225848443. The next prime is 225848453. The reversal of 225848448 is 844848522.

225848448 is a `hidden beast` number, since 22 + 584 + 8 + 4 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (225848443) and next prime (225848453).

It can be written as a sum of positive squares in only one way, i.e., 223562304 + 2286144 = 14952^2 + 1512^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225848443) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 54448 + ... + 58448.

Almost surely, 2225848448 is an apocalyptic number.

225848448 is a gapful number since it is divisible by the number (28) 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 225848448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378098955).

225848448 is an abundant number, since it is smaller than the sum of its proper divisors (530349462).

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

225848448 is a wasteful number, since it uses less digits than its factorization.

225848448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035 (or 4013 counting only the distinct ones).

The product of its digits is 655360, while the sum is 45.

The square root of 225848448 is about 15028.2549885208. The cubic root of 225848448 is about 608.9837490709.

The spelling of 225848448 in words is "two hundred twenty-five million, eight hundred forty-eight thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 128 144 147 168 192 196 224 252 288 294 336 384 392 441 448 504 576 588 672 784 882 896 1008 1152 1176 1344 1568 1764 2016 2352 2688 3136 3528 4001 4032 4704 6272 7056 8002 8064 9408 12003 14112 16004 18816 24006 28007 28224 32008 36009 48012 56014 56448 64016 72018 84021 96024 112028 128032 144036 168042 192048 196049 224056 252063 256064 288072 336084 384096 392098 448112 504126 512128 576144 588147 672168 768192 784196 896224 1008252 1152288 1176294 1344336 1536384 1568392 1764441 1792448 2016504 2304576 2352588 2688672 3136784 3528882 3584896 4033008 4609152 4705176 5377344 6273568 7057764 8066016 9410352 10754688 12547136 14115528 16132032 18820704 25094272 28231056 32264064 37641408 56462112 75282816 112924224 225848448