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1131110022 = 237219120143
BaseRepresentation
bin100001101101011…
…0101111010000110
32220211101100020210
41003122311322012
54304031010042
6304123340250
740013163600
oct10332657206
92824340223
101131110022
11530533779
12276981686
13150453c93
14aa31a170
156947da9c
hex436b5e86

1131110022 has 48 divisors (see below), whose sum is σ = 2645471232. Its totient is φ = 321466320.

The previous prime is 1131110003. The next prime is 1131110039. The reversal of 1131110022 is 2200111311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46083 + ... + 66225.

It is an arithmetic number, because the mean of its divisors is an integer number (55113984).

Almost surely, 21131110022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131110022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322735616).

1131110022 is an abundant number, since it is smaller than the sum of its proper divisors (1514361210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131110022 is a wasteful number, since it uses less digits than its factorization.

1131110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20353 (or 20346 counting only the distinct ones).

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

The square root of 1131110022 is about 33631.9791567490. The cubic root of 1131110022 is about 1041.9213809136.

Adding to 1131110022 its reverse (2200111311), we get a palindrome (3331221333).

The spelling of 1131110022 in words is "one billion, one hundred thirty-one million, one hundred ten thousand, twenty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 191 294 382 573 1146 1337 2674 4011 8022 9359 18718 20143 28077 40286 56154 60429 120858 141001 282002 423003 846006 987007 1974014 2961021 3847313 5922042 7694626 11541939 23083878 26931191 53862382 80793573 161587146 188518337 377036674 565555011 1131110022