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250122144 = 2532605439
BaseRepresentation
bin11101110100010…
…00111110100000
3122102122112002010
432322020332200
51003012402034
640452552520
76125001036
oct1672107640
9572575063
10250122144
11119207518
126b922740
133ca8618c
142530c556
1516e5a3e9
hexee88fa0

250122144 has 24 divisors (see below), whose sum is σ = 656570880. Its totient is φ = 83374016.

The previous prime is 250122097. The next prime is 250122151. The reversal of 250122144 is 441221052.

250122144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×2501221442 = 125122173838313472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 250122144.

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, 1302624 + ... + 1302815.

It is an arithmetic number, because the mean of its divisors is an integer number (27357120).

Almost surely, 2250122144 is an apocalyptic number.

250122144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

250122144 is an abundant number, since it is smaller than the sum of its proper divisors (406448736).

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

250122144 is a wasteful number, since it uses less digits than its factorization.

250122144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605452 (or 2605444 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 250122144 is about 15815.2503615972. The cubic root of 250122144 is about 630.0631027747.

Adding to 250122144 its reverse (441221052), we get a palindrome (691343196).

The spelling of 250122144 in words is "two hundred fifty million, one hundred twenty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 2605439 5210878 7816317 10421756 15632634 20843512 31265268 41687024 62530536 83374048 125061072 250122144