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250523330 = 25157159569
BaseRepresentation
bin11101110111010…
…10111011000010
3122110101220101212
432323222323002
51003113221310
640505330122
76131261501
oct1673527302
9573356355
10250523330
11119460982
126ba96942
133cb96975
14253b4838
1516ed9205
hexeeeaec2

250523330 has 16 divisors (see below), whose sum is σ = 453817080. Its totient is φ = 99570432.

The previous prime is 250523321. The next prime is 250523333. The reversal of 250523330 is 33325052.

It can be written as a sum of positive squares in 4 ways, for example, as 209294089 + 41229241 = 14467^2 + 6421^2 .

It is a junction number, because it is equal to n+sod(n) for n = 250523296 and 250523305.

It is not an unprimeable number, because it can be changed into a prime (250523333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78215 + ... + 81354.

Almost surely, 2250523330 is an apocalyptic number.

250523330 is a deficient number, since it is larger than the sum of its proper divisors (203293750).

250523330 is a wasteful number, since it uses less digits than its factorization.

250523330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159733.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 250523330 is about 15827.9287969083. The cubic root of 250523330 is about 630.3997882390.

Adding to 250523330 its reverse (33325052), we get a palindrome (283848382).

It can be divided in two parts, 25052 and 3330, that added together give a palindrome (28382).

The spelling of 250523330 in words is "two hundred fifty million, five hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 157 314 785 1570 159569 319138 797845 1595690 25052333 50104666 125261665 250523330