Search a number
-
+
11208642 = 231868107
BaseRepresentation
bin101010110000…
…011111000010
3210002110100220
4222300133002
510332134032
61040123510
7164162154
oct52603702
923073326
1011208642
116366245
123906596
132425a43
1416baad4
15eb612c
hexab07c2

11208642 has 8 divisors (see below), whose sum is σ = 22417296. Its totient is φ = 3736212.

The previous prime is 11208629. The next prime is 11208647. The reversal of 11208642 is 24680211.

It is a sphenic number, since it is the product of 3 distinct primes.

11208642 is an admirable number.

It is a super-4 number, since 4×112086424 (a number of 29 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (11208647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934048 + ... + 934059.

It is an arithmetic number, because the mean of its divisors is an integer number (2802162).

Almost surely, 211208642 is an apocalyptic number.

11208642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11208642 is a wasteful number, since it uses less digits than its factorization.

11208642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868112.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 11208642 is about 3347.9310028733. The cubic root of 11208642 is about 223.7953195136.

Adding to 11208642 its reverse (24680211), we get a palindrome (35888853).

The spelling of 11208642 in words is "eleven million, two hundred eight thousand, six hundred forty-two".

Divisors: 1 2 3 6 1868107 3736214 5604321 11208642