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1115414441 = 3121160681
BaseRepresentation
bin100001001111011…
…1101111110101001
32212201211220221222
41002132331332221
54241021230231
6302403111425
736432603101
oct10236757651
92781756858
101115414441
11522693419
12271672575
1314a119b5b
14a81d2201
1567dcd27b
hex427bdfa9

1115414441 has 6 divisors (see below), whose sum is σ = 1152557226. Its totient is φ = 1079432400.

The previous prime is 1115414431. The next prime is 1115414467. The reversal of 1115414441 is 1444145111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 622752025 + 492662416 = 24955^2 + 22196^2 .

It is a de Polignac number, because none of the positive numbers 2k-1115414441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115414441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115414401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 579380 + ... + 581301.

It is an arithmetic number, because the mean of its divisors is an integer number (192092871).

Almost surely, 21115414441 is an apocalyptic number.

It is an amenable number.

1115414441 is a deficient number, since it is larger than the sum of its proper divisors (37142785).

1115414441 is an equidigital number, since it uses as much as digits as its factorization.

1115414441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160743 (or 1160712 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 1115414441 is about 33397.8209019690. The cubic root of 1115414441 is about 1037.0795907551.

Adding to 1115414441 its reverse (1444145111), we get a palindrome (2559559552).

The spelling of 1115414441 in words is "one billion, one hundred fifteen million, four hundred fourteen thousand, four hundred forty-one".

Divisors: 1 31 961 1160681 35981111 1115414441