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11301331 = 15771983
BaseRepresentation
bin101011000111…
…000111010011
3210021011111211
4223013013103
510343120311
61042120551
7165026326
oct53070723
923234454
1011301331
116419948
123950157
132458ca2
1417027bd
15ed3821
hexac71d3

11301331 has 4 divisors (see below), whose sum is σ = 11373472. Its totient is φ = 11229192.

The previous prime is 11301319. The next prime is 11301337. The reversal of 11301331 is 13310311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11301331 is a prime.

It is a super-2 number, since 2×113013312 = 255440164743122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11301337) 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 3 ways as a sum of consecutive naturals, for example, 35835 + ... + 36148.

It is an arithmetic number, because the mean of its divisors is an integer number (2843368).

Almost surely, 211301331 is an apocalyptic number.

11301331 is a deficient number, since it is larger than the sum of its proper divisors (72141).

11301331 is an equidigital number, since it uses as much as digits as its factorization.

11301331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72140.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 11301331 is about 3361.7452312750. The cubic root of 11301331 is about 224.4105128934.

Adding to 11301331 its reverse (13310311), we get a palindrome (24611642).

The spelling of 11301331 in words is "eleven million, three hundred one thousand, three hundred thirty-one".

Divisors: 1 157 71983 11301331