Search a number
-
+
2989635049 = 10340172383
BaseRepresentation
bin1011001000110010…
…0011010111101001
321201100112012022001
42302030203113221
522110321310144
61212354131001
7134041323112
oct26214432751
97640465261
102989635049
1112a4631075
126b5280a61
133884c582b
142050a9209
151276e7bd4
hexb23235e9

2989635049 has 8 divisors (see below), whose sum is σ = 3026230272. Its totient is φ = 2953185600.

The previous prime is 2989635043. The next prime is 2989635067. The reversal of 2989635049 is 9405369892.

It is a happy number.

2989635049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2989635049 - 221 = 2987537897 is a prime.

It is a super-3 number, since 3×29896350493 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2989635043) 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, 5112 + ... + 77494.

It is an arithmetic number, because the mean of its divisors is an integer number (378278784).

Almost surely, 22989635049 is an apocalyptic number.

It is an amenable number.

2989635049 is a deficient number, since it is larger than the sum of its proper divisors (36595223).

2989635049 is a wasteful number, since it uses less digits than its factorization.

2989635049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72887.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The square root of 2989635049 is about 54677.5552580764. Note that the first 3 decimals coincide. The cubic root of 2989635049 is about 1440.5866708348.

The spelling of 2989635049 in words is "two billion, nine hundred eighty-nine million, six hundred thirty-five thousand, forty-nine".

Divisors: 1 103 401 41303 72383 7455449 29025583 2989635049