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2743418989 = 5235245543
BaseRepresentation
bin1010001110000101…
…0100000001101101
321002012020010100201
42203201110001231
521104303401424
61132120553501
7124661451043
oct24341240155
97065203321
102743418989
111188652323
12646922891
133494a955c
141c04d6393
15110caed44
hexa385406d

2743418989 has 4 divisors (see below), whose sum is σ = 2748665056. Its totient is φ = 2738172924.

The previous prime is 2743418981. The next prime is 2743419011. The reversal of 2743418989 is 9898143472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2743418989 - 23 = 2743418981 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2743418981) 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, 2622249 + ... + 2623294.

It is an arithmetic number, because the mean of its divisors is an integer number (687166264).

Almost surely, 22743418989 is an apocalyptic number.

It is an amenable number.

2743418989 is a deficient number, since it is larger than the sum of its proper divisors (5246067).

2743418989 is an equidigital number, since it uses as much as digits as its factorization.

2743418989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5246066.

The product of its digits is 3483648, while the sum is 55.

The square root of 2743418989 is about 52377.6573454751. The cubic root of 2743418989 is about 1399.9011816306.

The spelling of 2743418989 in words is "two billion, seven hundred forty-three million, four hundred eighteen thousand, nine hundred eighty-nine".

Divisors: 1 523 5245543 2743418989