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2749632993 = 33101838259
BaseRepresentation
bin1010001111100100…
…0001000111100001
321002121220211101000
42203321001013201
521112401223433
61132502102213
7125065331502
oct24371010741
97077824330
102749632993
111191106a68
12648a1a969
1334a873a93
141c1272ba9
151115db113
hexa3e411e1

2749632993 has 8 divisors (see below), whose sum is σ = 4073530400. Its totient is φ = 1833088644.

The previous prime is 2749632983. The next prime is 2749632997. The reversal of 2749632993 is 3992369472.

It is not a de Polignac number, because 2749632993 - 26 = 2749632929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2749632997) 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, 50919103 + ... + 50919156.

It is an arithmetic number, because the mean of its divisors is an integer number (509191300).

Almost surely, 22749632993 is an apocalyptic number.

It is an amenable number.

2749632993 is a deficient number, since it is larger than the sum of its proper divisors (1323897407).

2749632993 is a wasteful number, since it uses less digits than its factorization.

2749632993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101838268 (or 101838262 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 54.

The square root of 2749632993 is about 52436.9430173041. The cubic root of 2749632993 is about 1400.9573372186.

The spelling of 2749632993 in words is "two billion, seven hundred forty-nine million, six hundred thirty-two thousand, nine hundred ninety-three".

Divisors: 1 3 9 27 101838259 305514777 916544331 2749632993