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2131710169 is a prime number
BaseRepresentation
bin111111100001111…
…0101000011011001
312111120012002121111
41333003311003121
513331204211134
6551305540321
7103553144311
oct17703650331
95446162544
102131710169
119a4327446
124b5aa46a1
1327c841384
14163182441
15c722cc64
hex7f0f50d9

2131710169 has 2 divisors, whose sum is σ = 2131710170. Its totient is φ = 2131710168.

The previous prime is 2131710151. The next prime is 2131710181. The reversal of 2131710169 is 9610171312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1324013769 + 807696400 = 36387^2 + 28420^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131710169 - 27 = 2131710041 is a prime.

It is a super-2 number, since 2×21317101692 = 9088376489236017122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2131710169.

It is not a weakly prime, because it can be changed into another prime (2131710109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065855084 + 1065855085.

It is an arithmetic number, because the mean of its divisors is an integer number (1065855085).

Almost surely, 22131710169 is an apocalyptic number.

It is an amenable number.

2131710169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131710169 is an equidigital number, since it uses as much as digits as its factorization.

2131710169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 2131710169 is about 46170.4469222467. The cubic root of 2131710169 is about 1286.9926074824.

The spelling of 2131710169 in words is "two billion, one hundred thirty-one million, seven hundred ten thousand, one hundred sixty-nine".