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250293220 = 22512514661
BaseRepresentation
bin11101110101100…
…10101111100100
3122102222012202021
432322302233210
51003033340340
640500352524
76126312562
oct1672625744
9572865667
10250293220
11119314001
126b9a5744
133cb15cc8
1425354a32
1516e90e4a
hexeeb2be4

250293220 has 12 divisors (see below), whose sum is σ = 525615804. Its totient is φ = 100117280.

The previous prime is 250293217. The next prime is 250293259. The reversal of 250293220 is 22392052.

It can be written as a sum of positive squares in 2 ways, for example, as 29354724 + 220938496 = 5418^2 + 14864^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6257311 + ... + 6257350.

It is an arithmetic number, because the mean of its divisors is an integer number (43801317).

Almost surely, 2250293220 is an apocalyptic number.

250293220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250293220 is an abundant number, since it is smaller than the sum of its proper divisors (275322584).

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

250293220 is a wasteful number, since it uses less digits than its factorization.

250293220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12514670 (or 12514668 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 250293220 is about 15820.6580141282. The cubic root of 250293220 is about 630.2067180877.

The spelling of 250293220 in words is "two hundred fifty million, two hundred ninety-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 12514661 25029322 50058644 62573305 125146610 250293220