Search a number
-
+
2981006049 = 37178350157
BaseRepresentation
bin1011000110101110…
…1000101011100001
321200202021210112110
42301223220223201
522101114143144
61211445145533
7133605063510
oct26153505341
97622253473
102981006049
11129a777a6a
126b23bb2a9
13386794008
14203ca0677
15126a910b9
hexb1ae8ae1

2981006049 has 16 divisors (see below), whose sum is σ = 4809691008. Its totient is φ = 1603229952.

The previous prime is 2981006033. The next prime is 2981006051. The reversal of 2981006049 is 9406001892.

2981006049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2981006049 - 24 = 2981006033 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2981005998 and 2981006016.

It is not an unprimeable number, because it can be changed into a prime (2981006059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4174722 + ... + 4175435.

It is an arithmetic number, because the mean of its divisors is an integer number (300605688).

Almost surely, 22981006049 is an apocalyptic number.

It is an amenable number.

2981006049 is a deficient number, since it is larger than the sum of its proper divisors (1828684959).

2981006049 is a wasteful number, since it uses less digits than its factorization.

2981006049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8350184.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2981006049 is about 54598.5901741061. The cubic root of 2981006049 is about 1439.1993441645.

The spelling of 2981006049 in words is "two billion, nine hundred eighty-one million, six thousand, forty-nine".

Divisors: 1 3 7 17 21 51 119 357 8350157 25050471 58451099 141952669 175353297 425858007 993668683 2981006049