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225934480 = 2452824181
BaseRepresentation
bin11010111011101…
…11110010010000
3120202010122211201
431131313302100
5430314400410
634230320544
75412261052
oct1535676220
9522118751
10225934480
11106596a12
12637b9154
1337a67955
14220138d2
1514c7d83a
hexd777c90

225934480 has 20 divisors (see below), whose sum is σ = 525297852. Its totient is φ = 90373760.

The previous prime is 225934441. The next prime is 225934481. The reversal of 225934480 is 84439522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 130051216 + 95883264 = 11404^2 + 9792^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (225934481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412011 + ... + 1412170.

Almost surely, 2225934480 is an apocalyptic number.

225934480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225934480 is an abundant number, since it is smaller than the sum of its proper divisors (299363372).

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

225934480 is a wasteful number, since it uses less digits than its factorization.

225934480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824194 (or 2824188 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 225934480 is about 15031.1170576242. The cubic root of 225934480 is about 609.0610655771.

The spelling of 225934480 in words is "two hundred twenty-five million, nine hundred thirty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2824181 5648362 11296724 14120905 22593448 28241810 45186896 56483620 112967240 225934480