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11051131 = 713121441
BaseRepresentation
bin101010001010…
…000001111011
3202210110022011
4222022001323
510312114011
61032510351
7162635020
oct52120173
922713264
1011051131
116268973
12384b3b7
13239c140
141679547
15e84621
hexa8a07b

11051131 has 8 divisors (see below), whose sum is σ = 13601504. Its totient is φ = 8743680.

The previous prime is 11051119. The next prime is 11051137. The reversal of 11051131 is 13115011.

11051131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11051131 - 29 = 11050619 is a prime.

It is a super-2 number, since 2×110511312 = 244254992758322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (11051137) 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 7 ways as a sum of consecutive naturals, for example, 60630 + ... + 60811.

It is an arithmetic number, because the mean of its divisors is an integer number (1700188).

Almost surely, 211051131 is an apocalyptic number.

11051131 is a deficient number, since it is larger than the sum of its proper divisors (2550373).

11051131 is a wasteful number, since it uses less digits than its factorization.

11051131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121461.

The product of its (nonzero) digits is 15, while the sum is 13.

The square root of 11051131 is about 3324.3241418370. The cubic root of 11051131 is about 222.7420653838.

Adding to 11051131 its reverse (13115011), we get a palindrome (24166142).

The spelling of 11051131 in words is "eleven million, fifty-one thousand, one hundred thirty-one".

Divisors: 1 7 13 91 121441 850087 1578733 11051131