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225446956 = 2278051677
BaseRepresentation
bin11010111000000…
…00110000101100
3120201012220002021
431130000300230
5430203300311
634212035524
75405160520
oct1534006054
9521186067
10225446956
111062936a9
1263602ba4
1337926a87
1421d27d80
1514bd4171
hexd700c2c

225446956 has 12 divisors (see below), whose sum is σ = 450893968. Its totient is φ = 96620112.

The previous prime is 225446953. The next prime is 225446981. The reversal of 225446956 is 659644522.

225446956 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (225446953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4025811 + ... + 4025866.

Almost surely, 2225446956 is an apocalyptic number.

It is an amenable number.

225446956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

225446956 is a wasteful number, since it uses less digits than its factorization.

225446956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051688 (or 8051686 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 225446956 is about 15014.8911417965. The cubic root of 225446956 is about 608.6226704611.

The spelling of 225446956 in words is "two hundred twenty-five million, four hundred forty-six thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 14 28 8051677 16103354 32206708 56361739 112723478 225446956