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250204240 = 245111321871
BaseRepresentation
bin11101110100111…
…01000001010000
3122102210200200201
432322131001100
51003023013430
640454424544
76125462266
oct1672350120
9572720621
10250204240
11119263170
126b962154
133cab4660
1425330436
1516e748ca
hexee9d050

250204240 has 80 divisors (see below), whose sum is σ = 683456256. Its totient is φ = 83980800.

The previous prime is 250204237. The next prime is 250204259. The reversal of 250204240 is 42402052.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505 + ... + 22375.

Almost surely, 2250204240 is an apocalyptic number.

250204240 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 250204240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341728128).

250204240 is an abundant number, since it is smaller than the sum of its proper divisors (433252016).

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

250204240 is a wasteful number, since it uses less digits than its factorization.

250204240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21908 (or 21902 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 250204240 is about 15817.8456181618. The cubic root of 250204240 is about 630.1320291021.

Adding to 250204240 its reverse (42402052), we get a palindrome (292606292).

The spelling of 250204240 in words is "two hundred fifty million, two hundred four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 11 13 16 20 22 26 40 44 52 55 65 80 88 104 110 130 143 176 208 220 260 286 440 520 572 715 880 1040 1144 1430 2288 2860 5720 11440 21871 43742 87484 109355 174968 218710 240581 284323 349936 437420 481162 568646 874840 962324 1137292 1202905 1421615 1749680 1924648 2274584 2405810 2843230 3127553 3849296 4549168 4811620 5686460 6255106 9623240 11372920 12510212 15637765 19246480 22745840 25020424 31275530 50040848 62551060 125102120 250204240