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250605240 = 2335232931101
BaseRepresentation
bin11101110111111…
…10111010111000
3122110120001202120
432323332322320
51003123331430
640511201240
76132052344
oct1673767270
9573501676
10250605240
11119507476
126bb16220
133cbc5032
14253d6624
1517003610
hexeefeeb8

250605240 has 256 divisors, whose sum is σ = 846028800. Its totient is φ = 59136000.

The previous prime is 250605233. The next prime is 250605241. The reversal of 250605240 is 42506052.

250605240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 250605240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250605241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2481190 + ... + 2481290.

It is an arithmetic number, because the mean of its divisors is an integer number (3304800).

Almost surely, 2250605240 is an apocalyptic number.

250605240 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 250605240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423014400).

250605240 is an abundant number, since it is smaller than the sum of its proper divisors (595423560).

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

250605240 is a wasteful number, since it uses less digits than its factorization.

250605240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 250605240 is about 15830.5161002413. The cubic root of 250605240 is about 630.4684849949.

The spelling of 250605240 in words is "two hundred fifty million, six hundred five thousand, two hundred forty".