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250908228 = 22326969673
BaseRepresentation
bin11101111010010…
…00111001000100
3122111010110101100
432331020321010
51003213030403
640521500100
76134453604
oct1675107104
9574113340
10250908228
111196a407a
1270041630
133cc9cc0c
1425474c04
15170632a3
hexef48e44

250908228 has 18 divisors (see below), whose sum is σ = 634240334. Its totient is φ = 83636064.

The previous prime is 250908223. The next prime is 250908241. The reversal of 250908228 is 822809052.

250908228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163635264 + 87272964 = 12792^2 + 9342^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6969673 = 250908228 / (2 + 5 + 0 + 9 + 0 + 8 + 2 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 250908192 and 250908201.

It is not an unprimeable number, because it can be changed into a prime (250908221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3484801 + ... + 3484872.

Almost surely, 2250908228 is an apocalyptic number.

It is an amenable number.

250908228 is an abundant number, since it is smaller than the sum of its proper divisors (383332106).

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

250908228 is a wasteful number, since it uses less digits than its factorization.

250908228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6969683 (or 6969678 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 250908228 is about 15840.0829543282. The cubic root of 250908228 is about 630.7224667187.

The spelling of 250908228 in words is "two hundred fifty million, nine hundred eight thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 6969673 13939346 20909019 27878692 41818038 62727057 83636076 125454114 250908228