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383838250 = 2531535353
BaseRepresentation
bin10110111000001…
…110100000101010
3222202021000002111
4112320032200222
51241230311000
6102030552534
712340366645
oct2670164052
9882230074
10383838250
111877373a4
12a866874a
13616a3233
1438d98a5c
1523a6ecba
hex16e0e82a

383838250 has 16 divisors (see below), whose sum is σ = 718545672. Its totient is φ = 153535200.

The previous prime is 383838239. The next prime is 383838251. The reversal of 383838250 is 52838383.

It can be written as a sum of positive squares in 4 ways, for example, as 238177489 + 145660761 = 15433^2 + 12069^2 .

It is a super-3 number, since 3×3838382503 (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (383838251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 767427 + ... + 767926.

Almost surely, 2383838250 is an apocalyptic number.

383838250 is a deficient number, since it is larger than the sum of its proper divisors (334707422).

383838250 is a wasteful number, since it uses less digits than its factorization.

383838250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535370 (or 1535360 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 383838250 is about 19591.7903725004. The cubic root of 383838250 is about 726.7461675029.

The spelling of 383838250 in words is "three hundred eighty-three million, eight hundred thirty-eight thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 1535353 3070706 7676765 15353530 38383825 76767650 191919125 383838250