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4839090981 = 319711195723
BaseRepresentation
bin1001000000110111…
…01010101100100101
3110111020121021212220
410200123222230211
534402301402411
62120102302553
7230626410654
oct44033525445
913436537786
104839090981
1120635a474a
12b30727a59
135c171045a
1433c97719b
151d4c6eb06
hex1206eab25

4839090981 has 16 divisors (see below), whose sum is σ = 6887370240. Its totient is φ = 3013219440.

The previous prime is 4839090961. The next prime is 4839090989. The reversal of 4839090981 is 1890909384.

It is a happy number.

It is not a de Polignac number, because 4839090981 - 213 = 4839082789 is a prime.

It is a super-2 number, since 2×48390909812 = 46833603044791084722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4839090989) 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, 593815 + ... + 601908.

It is an arithmetic number, because the mean of its divisors is an integer number (430460640).

Almost surely, 24839090981 is an apocalyptic number.

It is an amenable number.

4839090981 is a deficient number, since it is larger than the sum of its proper divisors (2048279259).

4839090981 is a wasteful number, since it uses less digits than its factorization.

4839090981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195816.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 4839090981 is about 69563.5751022042. The cubic root of 4839090981 is about 1691.4322069015.

The spelling of 4839090981 in words is "four billion, eight hundred thirty-nine million, ninety thousand, nine hundred eighty-one".

Divisors: 1 3 19 57 71 213 1349 4047 1195723 3587169 22718737 68156211 84896333 254688999 1613030327 4839090981