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250204040 = 23550912289
BaseRepresentation
bin11101110100111…
…00111110001000
3122102210200102022
432322130332020
51003023012130
640454424012
76125461562
oct1672347610
9572720368
10250204040
11119262aa9
126b962008
133cab4538
1425330332
1516e747e5
hexee9cf88

250204040 has 32 divisors (see below), whose sum is σ = 564111000. Its totient is φ = 99876864.

The previous prime is 250204039. The next prime is 250204061. The reversal of 250204040 is 40402052.

It can be written as a sum of positive squares in 4 ways, for example, as 246050596 + 4153444 = 15686^2 + 2038^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14216 + ... + 26504.

Almost surely, 2250204040 is an apocalyptic number.

250204040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250204040 is an abundant number, since it is smaller than the sum of its proper divisors (313906960).

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

250204040 is a wasteful number, since it uses less digits than its factorization.

250204040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12809 (or 12805 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 250204040 is about 15817.8392961871. The cubic root of 250204040 is about 630.1318612040.

Adding to 250204040 its reverse (40402052), we get a palindrome (290606092).

The spelling of 250204040 in words is "two hundred fifty million, two hundred four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 509 1018 2036 2545 4072 5090 10180 12289 20360 24578 49156 61445 98312 122890 245780 491560 6255101 12510202 25020404 31275505 50040808 62551010 125102020 250204040