Search a number
-
+
83250361 = 10128161
BaseRepresentation
bin1001111011001…
…00110010111001
312210122120000201
410331210302321
5132303002421
612132202201
72030421265
oct475446271
9183576021
1083250361
1142aa1257
1223a69361
131432a98c
14b0b10a5
157496b91
hex4f64cb9

83250361 has 6 divisors (see below), whose sum is σ = 84093086. Its totient is φ = 82416000.

The previous prime is 83250359. The next prime is 83250367. The reversal of 83250361 is 16305238.

It can be written as a sum of positive squares in 3 ways, for example, as 52113961 + 31136400 = 7219^2 + 5580^2 .

It is not a de Polignac number, because 83250361 - 21 = 83250359 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83250367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6121 + ... + 14281.

Almost surely, 283250361 is an apocalyptic number.

It is an amenable number.

83250361 is a deficient number, since it is larger than the sum of its proper divisors (842725).

83250361 is an equidigital number, since it uses as much as digits as its factorization.

83250361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363 (or 8262 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 83250361 is about 9124.1635781040. The cubic root of 83250361 is about 436.6452182098.

Adding to 83250361 its reverse (16305238), we get a palindrome (99555599).

The spelling of 83250361 in words is "eighty-three million, two hundred fifty thousand, three hundred sixty-one".

Divisors: 1 101 8161 10201 824261 83250361