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249934080 = 2835116197
BaseRepresentation
bin11101110010110…
…11000100000000
3122102021222002210
432321123010000
51002440342310
640444542120
76123255534
oct1671330400
9572258083
10249934080
111190991a0
126b851940
133ca1b6b6
142529dbc4
1516e1e820
hexee5b100

249934080 has 288 divisors, whose sum is σ = 894192768. Its totient is φ = 58982400.

The previous prime is 249934067. The next prime is 249934127. The reversal of 249934080 is 80439942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2576592 + ... + 2576688.

It is an arithmetic number, because the mean of its divisors is an integer number (3104836).

Almost surely, 2249934080 is an apocalyptic number.

249934080 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 249934080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447096384).

249934080 is an abundant number, since it is smaller than the sum of its proper divisors (644258688).

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

249934080 is a wasteful number, since it uses less digits than its factorization.

249934080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 249934080 is about 15809.3035899751. The cubic root of 249934080 is about 629.9051507497.

The spelling of 249934080 in words is "two hundred forty-nine million, nine hundred thirty-four thousand, eighty".