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2163084879 = 31742413429
BaseRepresentation
bin1000000011101110…
…0000111001001111
312120202020002121210
42000323200321033
513412222204004
6554350225503
7104413626624
oct20073407117
95522202553
102163084879
11a1000675a
125044b5293
132861a7ca7
141673cc34b
15c9d79089
hex80ee0e4f

2163084879 has 8 divisors (see below), whose sum is σ = 3053766960. Its totient is φ = 1357229696.

The previous prime is 2163084871. The next prime is 2163084893. The reversal of 2163084879 is 9784803612.

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 2163084879 - 23 = 2163084871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163084871) 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, 21206664 + ... + 21206765.

It is an arithmetic number, because the mean of its divisors is an integer number (381720870).

Almost surely, 22163084879 is an apocalyptic number.

2163084879 is a deficient number, since it is larger than the sum of its proper divisors (890682081).

2163084879 is a wasteful number, since it uses less digits than its factorization.

2163084879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42413449.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 2163084879 is about 46508.9763271565. The cubic root of 2163084879 is about 1293.2759074315.

The spelling of 2163084879 in words is "two billion, one hundred sixty-three million, eighty-four thousand, eight hundred seventy-nine".

Divisors: 1 3 17 51 42413429 127240287 721028293 2163084879