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11371145 = 54155469
BaseRepresentation
bin101011011000…
…001010001001
3210101201021112
4223120022021
510402334040
61043420105
7165440012
oct53301211
923351245
1011371145
116467345
123984635
1324819b6
141720009
15ee9365
hexad8289

11371145 has 8 divisors (see below), whose sum is σ = 13978440. Its totient is φ = 8874880.

The previous prime is 11371123. The next prime is 11371153. The reversal of 11371145 is 54117311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1207801 + 10163344 = 1099^2 + 3188^2 .

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

It is not a de Polignac number, because 11371145 - 26 = 11371081 is a prime.

It is a super-2 number, since 2×113711452 = 258605877222050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11371145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27530 + ... + 27939.

It is an arithmetic number, because the mean of its divisors is an integer number (1747305).

Almost surely, 211371145 is an apocalyptic number.

It is an amenable number.

11371145 is a deficient number, since it is larger than the sum of its proper divisors (2607295).

11371145 is an equidigital number, since it uses as much as digits as its factorization.

11371145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55515.

The product of its digits is 420, while the sum is 23.

The square root of 11371145 is about 3372.1128391559. The cubic root of 11371145 is about 224.8716634382.

Adding to 11371145 its reverse (54117311), we get a palindrome (65488456).

The spelling of 11371145 in words is "eleven million, three hundred seventy-one thousand, one hundred forty-five".

Divisors: 1 5 41 205 55469 277345 2274229 11371145