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2980171 = 17916649
BaseRepresentation
bin1011010111100101001011
312121102000201
423113211023
51230331141
6143513031
734221355
oct13274513
95542021
102980171
111756057
12bb8777
1380461c
145780d5
153dd031
hex2d794b

2980171 has 4 divisors (see below), whose sum is σ = 2997000. Its totient is φ = 2963344.

The previous prime is 2980163. The next prime is 2980177. The reversal of 2980171 is 1710892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2980171 - 23 = 2980163 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2980177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8146 + ... + 8503.

It is an arithmetic number, because the mean of its divisors is an integer number (749250).

22980171 is an apocalyptic number.

2980171 is a deficient number, since it is larger than the sum of its proper divisors (16829).

2980171 is a wasteful number, since it uses less digits than its factorization.

2980171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16828.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2980171 is about 1726.3171782729. The cubic root of 2980171 is about 143.9064947232.

It can be divided in two parts, 29 and 80171, that added together give a triangular number (80200 = T400).

The spelling of 2980171 in words is "two million, nine hundred eighty thousand, one hundred seventy-one".

Divisors: 1 179 16649 2980171