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2163713240 = 235134160987
BaseRepresentation
bin1000000011110111…
…1010010011011000
312120210102000120102
42000331322103120
513412402310430
6554411514532
7104422154603
oct20075722330
95523360512
102163713240
11a103a5867
12504758a48
13286367cc0
1416751333a
15c9e50345
hex80f7a4d8

2163713240 has 32 divisors (see below), whose sum is σ = 5242844880. Its totient is φ = 798909312.

The previous prime is 2163713219. The next prime is 2163713243. The reversal of 2163713240 is 423173612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163713243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079974 + ... + 2081013.

Almost surely, 22163713240 is an apocalyptic number.

2163713240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163713240 is an abundant number, since it is smaller than the sum of its proper divisors (3079131640).

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

2163713240 is a wasteful number, since it uses less digits than its factorization.

2163713240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161011 (or 4161007 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 2163713240 is about 46515.7311024991. The cubic root of 2163713240 is about 1293.4011245037.

Adding to 2163713240 its reverse (423173612), we get a palindrome (2586886852).

The spelling of 2163713240 in words is "two billion, one hundred sixty-three million, seven hundred thirteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 4160987 8321974 16643948 20804935 33287896 41609870 54092831 83219740 108185662 166439480 216371324 270464155 432742648 540928310 1081856620 2163713240