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250068840 = 233574153137
BaseRepresentation
bin11101110011110…
…11111101101000
3122102112210221220
432321323331220
51003004200330
640451502040
76124356450
oct1671737550
9572483856
10250068840
1111918046a
126b8b7920
133ca67b38
14252d6d60
1516e49710
hexee7bf68

250068840 has 256 divisors, whose sum is σ = 901393920. Its totient is φ = 54312960.

The previous prime is 250068809. The next prime is 250068853. The reversal of 250068840 is 48860052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1825252 + ... + 1825388.

It is an arithmetic number, because the mean of its divisors is an integer number (3521070).

Almost surely, 2250068840 is an apocalyptic number.

250068840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250068840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450696960).

250068840 is an abundant number, since it is smaller than the sum of its proper divisors (651325080).

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

250068840 is a wasteful number, since it uses less digits than its factorization.

250068840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 250068840 is about 15813.5650629452. The cubic root of 250068840 is about 630.0183416177.

The spelling of 250068840 in words is "two hundred fifty million, sixty-eight thousand, eight hundred forty".