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250242720 = 253571317337
BaseRepresentation
bin11101110101001…
…10011010100000
3122102212122110220
432322212122200
51003030231340
640455323040
76126012420
oct1672463240
9572778426
10250242720
1111928a072
126b980480
133cac9020
1425340480
1516e80ed0
hexeea66a0

250242720 has 384 divisors, whose sum is σ = 1030288896. Its totient is φ = 49545216.

The previous prime is 250242701. The next prime is 250242739. The reversal of 250242720 is 27242052.

250242720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (250242701) and next prime (250242739).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 742392 + ... + 742728.

It is an arithmetic number, because the mean of its divisors is an integer number (2683044).

Almost surely, 2250242720 is an apocalyptic number.

250242720 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 250242720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515144448).

250242720 is an abundant number, since it is smaller than the sum of its proper divisors (780046176).

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

250242720 is a wasteful number, since it uses less digits than its factorization.

250242720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 250242720 is about 15819.0619190899. The cubic root of 250242720 is about 630.1643310294.

Adding to 250242720 its reverse (27242052), we get a palindrome (277484772).

The spelling of 250242720 in words is "two hundred fifty million, two hundred forty-two thousand, seven hundred twenty".