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225669340 = 22513867959
BaseRepresentation
bin11010111001101…
…11000011011100
3120201122012010201
431130313003130
5430232404330
634220513244
75410105051
oct1534670334
9521565121
10225669340
11106425796
12636ab824
13379a4070
1421d85028
1514c29eca
hexd7370dc

225669340 has 24 divisors (see below), whose sum is σ = 510360480. Its totient is φ = 83323968.

The previous prime is 225669319. The next prime is 225669341. The reversal of 225669340 is 43966522.

225669340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225669340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225669341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433720 + ... + 434239.

It is an arithmetic number, because the mean of its divisors is an integer number (21265020).

Almost surely, 2225669340 is an apocalyptic number.

225669340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225669340 is an abundant number, since it is smaller than the sum of its proper divisors (284691140).

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

225669340 is a wasteful number, since it uses less digits than its factorization.

225669340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867981 (or 867979 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 225669340 is about 15022.2947647821. The cubic root of 225669340 is about 608.8227226415.

The spelling of 225669340 in words is "two hundred twenty-five million, six hundred sixty-nine thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 867959 1735918 3471836 4339795 8679590 11283467 17359180 22566934 45133868 56417335 112834670 225669340