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2106715161 = 39711364067
BaseRepresentation
bin111110110010001…
…1110110000011001
312102211011012220110
41331210132300121
513303304341121
6545014114533
7103130532465
oct17544366031
95384135813
102106715161
11991205311
124a964ba49
132775cc525
1415db174a5
15c4e41d76
hex7d91ec19

2106715161 has 16 divisors (see below), whose sum is σ = 2863070784. Its totient is φ = 1377675264.

The previous prime is 2106715159. The next prime is 2106715181. The reversal of 2106715161 is 1615176012.

It is not a de Polignac number, because 2106715161 - 21 = 2106715159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2106715151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 64916.

It is an arithmetic number, because the mean of its divisors is an integer number (178941924).

Almost surely, 22106715161 is an apocalyptic number.

It is an amenable number.

2106715161 is a deficient number, since it is larger than the sum of its proper divisors (756355623).

2106715161 is a wasteful number, since it uses less digits than its factorization.

2106715161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64280.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 2106715161 is about 45898.9668837982. The cubic root of 2106715161 is about 1281.9426801523.

The spelling of 2106715161 in words is "two billion, one hundred six million, seven hundred fifteen thousand, one hundred sixty-one".

Divisors: 1 3 97 113 291 339 10961 32883 64067 192201 6214499 7239571 18643497 21718713 702238387 2106715161