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225934479 = 3231809801
BaseRepresentation
bin11010111011101…
…11110010001111
3120202010122211200
431131313302033
5430314400404
634230320543
75412261051
oct1535676217
9522118750
10225934479
11106596a11
12637b9153
1337a67954
14220138d1
1514c7d839
hexd777c8f

225934479 has 12 divisors (see below), whose sum is σ = 336877632. Its totient is φ = 145764000.

The previous prime is 225934441. The next prime is 225934481. The reversal of 225934479 is 974439522.

It is not a de Polignac number, because 225934479 - 28 = 225934223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225934409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404622 + ... + 405179.

It is an arithmetic number, because the mean of its divisors is an integer number (28073136).

Almost surely, 2225934479 is an apocalyptic number.

225934479 is a deficient number, since it is larger than the sum of its proper divisors (110943153).

225934479 is a wasteful number, since it uses less digits than its factorization.

225934479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809838 (or 809835 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 225934479 is about 15031.1170243598. The cubic root of 225934479 is about 609.0610646785.

It can be divided in two parts, 22593 and 4479, that added together give a palindrome (27072).

The spelling of 225934479 in words is "two hundred twenty-five million, nine hundred thirty-four thousand, four hundred seventy-nine".

Divisors: 1 3 9 31 93 279 809801 2429403 7288209 25103831 75311493 225934479