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250669220 = 22512533461
BaseRepresentation
bin11101111000011…
…10100010100100
3122110200022112012
432330032202210
51003132403340
640512413352
76132440024
oct1674164244
9573608465
10250669220
1111955054a
126bb47258
133cc181a9
1425411a84
1517017565
hexef0e8a4

250669220 has 12 divisors (see below), whose sum is σ = 526405404. Its totient is φ = 100267680.

The previous prime is 250669217. The next prime is 250669241. The reversal of 250669220 is 22966052.

It is a happy number.

250669220 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 2 ways, for example, as 71537764 + 179131456 = 8458^2 + 13384^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6266711 + ... + 6266750.

It is an arithmetic number, because the mean of its divisors is an integer number (43867117).

Almost surely, 2250669220 is an apocalyptic number.

250669220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250669220 is an abundant number, since it is smaller than the sum of its proper divisors (275736184).

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

250669220 is a wasteful number, since it uses less digits than its factorization.

250669220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533470 (or 12533468 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 250669220 is about 15832.5367518917. The cubic root of 250669220 is about 630.5221337021.

The spelling of 250669220 in words is "two hundred fifty million, six hundred sixty-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 12533461 25066922 50133844 62667305 125334610 250669220