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2943753681 = 31189204657
BaseRepresentation
bin1010111101110110…
…0001110111010001
321121011012011220010
42233131201313101
522012100104211
61204034505133
7132643331151
oct25735416721
97534164803
102943753681
111280743790
126a1a351a9
1337bb4ccab
141dcd64761
151236834a6
hexaf761dd1

2943753681 has 8 divisors (see below), whose sum is σ = 4281823584. Its totient is φ = 1784093120.

The previous prime is 2943753667. The next prime is 2943753697. The reversal of 2943753681 is 1863573492.

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 2943753681 - 213 = 2943745489 is a prime.

It is a super-2 number, since 2×29437536812 = 17331371468802099522, 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 2943753681.

It is not an unprimeable number, because it can be changed into a prime (2943753181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44602296 + ... + 44602361.

It is an arithmetic number, because the mean of its divisors is an integer number (535227948).

Almost surely, 22943753681 is an apocalyptic number.

It is an amenable number.

2943753681 is a deficient number, since it is larger than the sum of its proper divisors (1338069903).

2943753681 is a wasteful number, since it uses less digits than its factorization.

2943753681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89204671.

The product of its digits is 1088640, while the sum is 48.

The square root of 2943753681 is about 54256.3699578215. The cubic root of 2943753681 is about 1433.1791756988.

The spelling of 2943753681 in words is "two billion, nine hundred forty-three million, seven hundred fifty-three thousand, six hundred eighty-one".

Divisors: 1 3 11 33 89204657 267613971 981251227 2943753681