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2981029810 = 251122719091
BaseRepresentation
bin1011000110101110…
…1110011110110010
321200202100000010111
42301223232132302
522101120423220
61211445451534
7133605223003
oct26153563662
97622300114
102981029810
11129a793900
126b2410baa
133867a1a85
14203ca91aa
15126a9815a
hexb1aee7b2

2981029810 has 48 divisors (see below), whose sum is σ = 5920419456. Its totient is φ = 1079892000.

The previous prime is 2981029789. The next prime is 2981029819. The reversal of 2981029810 is 189201892.

It is a super-2 number, since 2×29810298102 = 17773077456217272200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2981029819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323365 + ... + 332455.

It is an arithmetic number, because the mean of its divisors is an integer number (123342072).

Almost surely, 22981029810 is an apocalyptic number.

2981029810 is a deficient number, since it is larger than the sum of its proper divisors (2939389646).

2981029810 is a wasteful number, since it uses less digits than its factorization.

2981029810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9391 (or 9380 counting only the distinct ones).

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

The square root of 2981029810 is about 54598.8077708662. The cubic root of 2981029810 is about 1439.2031680105.

The spelling of 2981029810 in words is "two billion, nine hundred eighty-one million, twenty-nine thousand, eight hundred ten".

Divisors: 1 2 5 10 11 22 55 110 121 242 271 542 605 1210 1355 2710 2981 5962 9091 14905 18182 29810 32791 45455 65582 90910 100001 163955 200002 327910 500005 1000010 1100011 2200022 2463661 4927322 5500055 11000110 12318305 24636610 27100271 54200542 135501355 271002710 298102981 596205962 1490514905 2981029810