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11140131 = 310213637
BaseRepresentation
bin101010011111…
…110000100011
3202221222101110
4222133300203
510322441011
61034434403
7163455342
oct52376043
922858343
1011140131
116319822
123892a03
1324007c2
14169db59
15ea0ba6
hexa9fc23

11140131 has 8 divisors (see below), whose sum is σ = 14872144. Its totient is φ = 7417440.

The previous prime is 11140111. The next prime is 11140141. The reversal of 11140131 is 13104111.

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

It is not a de Polignac number, because 11140131 - 29 = 11139619 is a prime.

It is a super-2 number, since 2×111401312 = 248205037394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11140111) 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, 1245 + ... + 4881.

It is an arithmetic number, because the mean of its divisors is an integer number (1859018).

Almost surely, 211140131 is an apocalyptic number.

11140131 is a deficient number, since it is larger than the sum of its proper divisors (3732013).

11140131 is a wasteful number, since it uses less digits than its factorization.

11140131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 11140131 is about 3337.6834781027. The cubic root of 11140131 is about 223.3384165077.

Adding to 11140131 its reverse (13104111), we get a palindrome (24244242).

The spelling of 11140131 in words is "eleven million, one hundred forty thousand, one hundred thirty-one".

Divisors: 1 3 1021 3063 3637 10911 3713377 11140131