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225679388 = 22115129077
BaseRepresentation
bin11010111001110…
…01100000011100
3120201122200220212
431130321200130
5430233220023
634221031552
75410146254
oct1534714034
9521580825
10225679388
111064322a0
12636b55b8
13379a87cc
1421d88964
1514c2ce78
hexd73981c

225679388 has 12 divisors (see below), whose sum is σ = 430842552. Its totient is φ = 102581520.

The previous prime is 225679387. The next prime is 225679417. The reversal of 225679388 is 883976522.

225679388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225679387) 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, 2564495 + ... + 2564582.

It is an arithmetic number, because the mean of its divisors is an integer number (35903546).

Almost surely, 2225679388 is an apocalyptic number.

It is an amenable number.

225679388 is a deficient number, since it is larger than the sum of its proper divisors (205163164).

225679388 is a wasteful number, since it uses less digits than its factorization.

225679388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129092 (or 5129090 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 225679388 is about 15022.6291973143. The cubic root of 225679388 is about 608.8317585166.

The spelling of 225679388 in words is "two hundred twenty-five million, six hundred seventy-nine thousand, three hundred eighty-eight".

Divisors: 1 2 4 11 22 44 5129077 10258154 20516308 56419847 112839694 225679388