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250234840 = 23517934949
BaseRepresentation
bin11101110101001…
…00011111011000
3122102212020200001
432322210133120
51003030003330
640455222344
76125650432
oct1672443730
9572766601
10250234840
11119284159
126b9779b4
133cac556b
142533b652
1516e7d9ca
hexeea47d8

250234840 has 32 divisors (see below), whose sum is σ = 566190000. Its totient is φ = 99531904.

The previous prime is 250234837. The next prime is 250234841. The reversal of 250234840 is 48432052.

It is a junction number, because it is equal to n+sod(n) for n = 250234799 and 250234808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250234841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10315 + ... + 24634.

Almost surely, 2250234840 is an apocalyptic number.

250234840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250234840 is an abundant number, since it is smaller than the sum of its proper divisors (315955160).

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

250234840 is a wasteful number, since it uses less digits than its factorization.

250234840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35139 (or 35135 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 250234840 is about 15818.8128505271. The cubic root of 250234840 is about 630.1577164553.

Adding to 250234840 its reverse (48432052), we get a palindrome (298666892).

The spelling of 250234840 in words is "two hundred fifty million, two hundred thirty-four thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 179 358 716 895 1432 1790 3580 7160 34949 69898 139796 174745 279592 349490 698980 1397960 6255871 12511742 25023484 31279355 50046968 62558710 125117420 250234840