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2743972489 = 29181522761
BaseRepresentation
bin1010001110001101…
…1011001010001001
321002020021020121201
42203203123022021
521104424104424
61132140504201
7124666244536
oct24343331211
97066236551
102743972489
1111889a0165
12646b4b061
1334964147b
141c05dbd8d
15110d6dd44
hexa38db289

2743972489 has 8 divisors (see below), whose sum is σ = 2854280520. Its totient is φ = 2634710400.

The previous prime is 2743972421. The next prime is 2743972493. The reversal of 2743972489 is 9842793472.

It can be written as a sum of positive squares in 4 ways, for example, as 113103225 + 2630869264 = 10635^2 + 51292^2 .

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 2743972489 - 29 = 2743971977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2743975489) 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, 256132 + ... + 266629.

It is an arithmetic number, because the mean of its divisors is an integer number (356785065).

Almost surely, 22743972489 is an apocalyptic number.

2743972489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2743972489 is a deficient number, since it is larger than the sum of its proper divisors (110308031).

2743972489 is a wasteful number, since it uses less digits than its factorization.

2743972489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522971.

The product of its digits is 6096384, while the sum is 55.

The square root of 2743972489 is about 52382.9408204618. The cubic root of 2743972489 is about 1399.9953212429.

The spelling of 2743972489 in words is "two billion, seven hundred forty-three million, nine hundred seventy-two thousand, four hundred eighty-nine".

Divisors: 1 29 181 5249 522761 15160069 94619741 2743972489