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250204520 = 235531071103
BaseRepresentation
bin11101110100111…
…01000101101000
3122102210201002002
432322131011220
51003023021040
640454430132
76125463146
oct1672350550
9572721062
10250204520
111192633a5
126b962348
133cab4817
1425330596
1516e74a15
hexee9d168

250204520 has 64 divisors (see below), whose sum is σ = 579467520. Its totient is φ = 97187584.

The previous prime is 250204501. The next prime is 250204541. The reversal of 250204520 is 25402052.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 250204492 and 250204501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226289 + ... + 227391.

It is an arithmetic number, because the mean of its divisors is an integer number (9054180).

Almost surely, 2250204520 is an apocalyptic number.

250204520 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 250204520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289733760).

250204520 is an abundant number, since it is smaller than the sum of its proper divisors (329263000).

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

250204520 is a wasteful number, since it uses less digits than its factorization.

250204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 250204520 is about 15817.8544689221. The cubic root of 250204520 is about 630.1322641592.

Adding to 250204520 its reverse (25402052), we get a palindrome (275606572).

The spelling of 250204520 in words is "two hundred fifty million, two hundred four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 53 106 107 212 214 265 424 428 530 535 856 1060 1070 1103 2120 2140 2206 4280 4412 5515 5671 8824 11030 11342 22060 22684 28355 44120 45368 56710 58459 113420 116918 118021 226840 233836 236042 292295 467672 472084 584590 590105 944168 1169180 1180210 2338360 2360420 4720840 6255113 12510226 25020452 31275565 50040904 62551130 125102260 250204520