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2160260840 = 23554006521
BaseRepresentation
bin1000000011000010…
…1111011011101000
312120112220121202202
42000300233123220
513411011321330
6554205515332
7104350625363
oct20060573350
95515817682
102160260840
11a09457a41
12503572b48
1328572976a
14166c950da
15c99bc445
hex80c2f6e8

2160260840 has 16 divisors (see below), whose sum is σ = 4860586980. Its totient is φ = 864104320.

The previous prime is 2160260831. The next prime is 2160260887. The reversal of 2160260840 is 480620612.

It can be written as a sum of positive squares in 2 ways, for example, as 1902529924 + 257730916 = 43618^2 + 16054^2 .

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, 27003221 + ... + 27003300.

Almost surely, 22160260840 is an apocalyptic number.

2160260840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2160260840 is an abundant number, since it is smaller than the sum of its proper divisors (2700326140).

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

2160260840 is a wasteful number, since it uses less digits than its factorization.

2160260840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54006532 (or 54006528 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2160260840 is about 46478.6062613758. The cubic root of 2160260840 is about 1292.7128455122.

The spelling of 2160260840 in words is "two billion, one hundred sixty million, two hundred sixty thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 54006521 108013042 216026084 270032605 432052168 540065210 1080130420 2160260840