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225312080 = 2457402343
BaseRepresentation
bin11010110110111…
…11110101010000
3120200222001001212
431123133311100
5430134441310
634205115252
75404056350
oct1533376520
9520861055
10225312080
11106201334
1263558b28
13378aa576
1421cd0b60
1514ba9205
hexd6dfd50

225312080 has 40 divisors (see below), whose sum is σ = 598687872. Its totient is φ = 77249664.

The previous prime is 225312041. The next prime is 225312103. The reversal of 225312080 is 80213522.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200612 + ... + 201731.

Almost surely, 2225312080 is an apocalyptic number.

225312080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225312080 is an abundant number, since it is smaller than the sum of its proper divisors (373375792).

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

225312080 is a wasteful number, since it uses less digits than its factorization.

225312080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402363 (or 402357 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 225312080 is about 15010.3990619837. The cubic root of 225312080 is about 608.5012746225.

The spelling of 225312080 in words is "two hundred twenty-five million, three hundred twelve thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 402343 804686 1609372 2011715 2816401 3218744 4023430 5632802 6437488 8046860 11265604 14082005 16093720 22531208 28164010 32187440 45062416 56328020 112656040 225312080