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2981053520 = 24537263169
BaseRepresentation
bin1011000110101111…
…0100010001010000
321200202101012122122
42301223310101100
522101122203040
61211450153412
7133605352064
oct26153642120
97622335578
102981053520
11129a7aa6a5
126b2422868
133867ac7c3
14203cb3aa4
15126aa01b5
hexb1af4450

2981053520 has 20 divisors (see below), whose sum is σ = 6930949620. Its totient is φ = 1192421376.

The previous prime is 2981053511. The next prime is 2981053531. The reversal of 2981053520 is 253501892.

It can be written as a sum of positive squares in 2 ways, for example, as 2195484736 + 785568784 = 46856^2 + 28028^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18631505 + ... + 18631664.

It is an arithmetic number, because the mean of its divisors is an integer number (346547481).

Almost surely, 22981053520 is an apocalyptic number.

2981053520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2981053520 is an abundant number, since it is smaller than the sum of its proper divisors (3949896100).

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

2981053520 is a wasteful number, since it uses less digits than its factorization.

2981053520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37263182 (or 37263176 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 2981053520 is about 54599.0248997178. The cubic root of 2981053520 is about 1439.2069836289.

The spelling of 2981053520 in words is "two billion, nine hundred eighty-one million, fifty-three thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 37263169 74526338 149052676 186315845 298105352 372631690 596210704 745263380 1490526760 2981053520