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2981002981 = 111012719901
BaseRepresentation
bin1011000110101110…
…0111111011100101
321200202021122022211
42301223213323211
522101114043411
61211445123421
7133605051535
oct26153477345
97622248284
102981002981
11129a775730
126b23b9571
133867927b8
14203c9d4c5
15126a90221
hexb1ae7ee5

2981002981 has 16 divisors (see below), whose sum is σ = 3296653056. Its totient is φ = 2673000000.

The previous prime is 2981002979. The next prime is 2981003027. The reversal of 2981002981 is 1892001892.

It is not a de Polignac number, because 2981002981 - 21 = 2981002979 is a prime.

It is a super-2 number, since 2×29810029812 = 17772757545461772722, which contains 22 as substring.

It is a deceptive number, since it divides R2981002980.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981003981) 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, 296131 + ... + 306031.

It is an arithmetic number, because the mean of its divisors is an integer number (206040816).

Almost surely, 22981002981 is an apocalyptic number.

It is an amenable number.

2981002981 is a deficient number, since it is larger than the sum of its proper divisors (315650075).

2981002981 is a wasteful number, since it uses less digits than its factorization.

2981002981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 2981002981 is about 54598.5620781354. The cubic root of 2981002981 is about 1439.1988504312.

It can be divided in two parts, 298100 and 2981, that multiplied together give a square (888636100 = 298102).

The spelling of 2981002981 in words is "two billion, nine hundred eighty-one million, two thousand, nine hundred eighty-one".

Divisors: 1 11 101 271 1111 2981 9901 27371 108911 301081 1000001 2683171 11000011 29514881 271000271 2981002981