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250939140 = 22357515569
BaseRepresentation
bin11101111010100…
…00011100000100
3122111012000210020
432331100130010
51003220023030
640522255140
76134642664
oct1675203404
9574160706
10250939140
11119715321
12700574b0
133ccb0cca
14254821a4
151706c510
hexef50704

250939140 has 48 divisors (see below), whose sum is σ = 703691520. Its totient is φ = 66816000.

The previous prime is 250939133. The next prime is 250939151. The reversal of 250939140 is 41939052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42276 + ... + 47844.

It is an arithmetic number, because the mean of its divisors is an integer number (14660240).

Almost surely, 2250939140 is an apocalyptic number.

250939140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250939140 is an abundant number, since it is smaller than the sum of its proper divisors (452752380).

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

250939140 is a wasteful number, since it uses less digits than its factorization.

250939140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 250939140 is about 15841.0586767425. The cubic root of 250939140 is about 630.7483674135.

The spelling of 250939140 in words is "two hundred fifty million, nine hundred thirty-nine thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 751 1502 2253 3004 3755 4506 5569 7510 9012 11138 11265 15020 16707 22276 22530 27845 33414 45060 55690 66828 83535 111380 167070 334140 4182319 8364638 12546957 16729276 20911595 25093914 41823190 50187828 62734785 83646380 125469570 250939140