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250056140 = 22523952313
BaseRepresentation
bin11101110011110…
…00110111001100
3122102112011112112
432321320313030
51003003244030
640451323152
76124304435
oct1671706714
9572464475
10250056140
11119171974
126b8b04b8
133ca62119
14252d248c
1516e45a95
hexee78dcc

250056140 has 24 divisors (see below), whose sum is σ = 527325120. Its totient is φ = 99602048.

The previous prime is 250056139. The next prime is 250056167. The reversal of 250056140 is 41650052.

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 7 ways as a sum of consecutive naturals, for example, 21377 + ... + 30936.

It is an arithmetic number, because the mean of its divisors is an integer number (21971880).

Almost surely, 2250056140 is an apocalyptic number.

250056140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250056140 is an abundant number, since it is smaller than the sum of its proper divisors (277268980).

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

250056140 is a wasteful number, since it uses less digits than its factorization.

250056140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52561 (or 52559 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 250056140 is about 15813.1635038660. The cubic root of 250056140 is about 630.0076760634.

The spelling of 250056140 in words is "two hundred fifty million, fifty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 239 478 956 1195 2390 4780 52313 104626 209252 261565 523130 1046260 12502807 25005614 50011228 62514035 125028070 250056140