Search a number
-
+
11221440308 = 22131783152939
BaseRepresentation
bin10100111001101100…
…11001011100110100
31001222001010020020022
422130312121130310
5140440142042213
65053254224312
7545035445261
oct123466313464
931861106208
1011221440308
114839235211
122212055098
13109aa7a810
14786474268
1545a231308
hex29cd99734

11221440308 has 48 divisors (see below), whose sum is σ = 22662037440. Its totient is φ = 4815711744.

The previous prime is 11221440301. The next prime is 11221440319. The reversal of 11221440308 is 80304412211.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221440301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3098 + ... + 149841.

It is an arithmetic number, because the mean of its divisors is an integer number (472125780).

Almost surely, 211221440308 is an apocalyptic number.

It is an amenable number.

11221440308 is an abundant number, since it is smaller than the sum of its proper divisors (11440597132).

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

11221440308 is a wasteful number, since it uses less digits than its factorization.

11221440308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153056 (or 153054 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 11221440308 its reverse (80304412211), we get a palindrome (91525852519).

The spelling of 11221440308 in words is "eleven billion, two hundred twenty-one million, four hundred forty thousand, three hundred eight".

Divisors: 1 2 4 13 17 26 34 52 68 83 166 221 332 442 884 1079 1411 2158 2822 4316 5644 18343 36686 73372 152939 305878 611756 1988207 2599963 3976414 5199926 7952828 10399852 12693937 25387874 33799519 50775748 67599038 135198076 165021181 215796929 330042362 431593858 660084724 863187716 2805360077 5610720154 11221440308