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5381181120 = 263574119531
BaseRepresentation
bin1010000001011111…
…00100111011000000
3111220000122022202110
411000233210323000
542010040243440
62245545215320
7250231166460
oct50057447300
914800568673
105381181120
11231159a027
121062191540
13679b11553
14390967ba0
1521764e080
hex140be4ec0

5381181120 has 224 divisors, whose sum is σ = 20003268096. Its totient is φ = 1199923200.

The previous prime is 5381181073. The next prime is 5381181133. The reversal of 5381181120 is 211811835.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×53811811202 = 57914220492488908800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265755 + ... + 285285.

It is an arithmetic number, because the mean of its divisors is an integer number (89300304).

Almost surely, 25381181120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5381181120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10001634048).

5381181120 is an abundant number, since it is smaller than the sum of its proper divisors (14622086976).

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

5381181120 is a wasteful number, since it uses less digits than its factorization.

5381181120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19599 (or 19589 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 5381181120 is about 73356.5342692797. The cubic root of 5381181120 is about 1752.3702434721.

Adding to 5381181120 its reverse (211811835), we get a palindrome (5592992955).

The spelling of 5381181120 in words is "five billion, three hundred eighty-one million, one hundred eighty-one thousand, one hundred twenty".