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2171324131 = 23454920753
BaseRepresentation
bin1000000101101011…
…1100011011100011
312121022201200202021
42001122330123203
513421324333011
6555243002311
7104543644024
oct20132743343
95538650667
102171324131
11a14723a59
12507209397
13287b012a2
14168534c4b
15ca955471
hex816bc6e3

2171324131 has 8 divisors (see below), whose sum is σ = 2266336800. Its totient is φ = 2076362112.

The previous prime is 2171324117. The next prime is 2171324137. The reversal of 2171324131 is 1314231712.

2171324131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2171324131 - 29 = 2171323619 is a prime.

It is a super-2 number, since 2×21713241312 = 9429296963725810322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2171324096 and 2171324105.

It is not an unprimeable number, because it can be changed into a prime (2171324137) 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, 94251 + ... + 115003.

It is an arithmetic number, because the mean of its divisors is an integer number (283292100).

Almost surely, 22171324131 is an apocalyptic number.

2171324131 is a deficient number, since it is larger than the sum of its proper divisors (95012669).

2171324131 is a wasteful number, since it uses less digits than its factorization.

2171324131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25325.

The product of its digits is 1008, while the sum is 25.

The square root of 2171324131 is about 46597.4691480127. The cubic root of 2171324131 is about 1294.9158685772.

Adding to 2171324131 its reverse (1314231712), we get a palindrome (3485555843).

The spelling of 2171324131 in words is "two billion, one hundred seventy-one million, three hundred twenty-four thousand, one hundred thirty-one".

Divisors: 1 23 4549 20753 104627 477319 94405397 2171324131