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2983908381 = 32343245049
BaseRepresentation
bin1011000111011010…
…1101010000011101
321200221202020210020
42301312231100131
522102340032011
61212031302353
7133641542226
oct26166552035
97627666706
102983908381
1112a137a593
126b337a9b9
1338726c07c
1420441824d
15126e66006
hexb1dad41d

2983908381 has 8 divisors (see below), whose sum is σ = 4151524800. Its totient is φ = 1902782112.

The previous prime is 2983908359. The next prime is 2983908383. The reversal of 2983908381 is 1838093892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2983908381 - 213 = 2983900189 is a prime.

It is a super-2 number, since 2×29839083812 = 17807418452404082322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2983908383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21622456 + ... + 21622593.

It is an arithmetic number, because the mean of its divisors is an integer number (518940600).

Almost surely, 22983908381 is an apocalyptic number.

It is an amenable number.

2983908381 is a deficient number, since it is larger than the sum of its proper divisors (1167616419).

2983908381 is a wasteful number, since it uses less digits than its factorization.

2983908381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43245075.

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 2983908381 is about 54625.1625260740. The cubic root of 2983908381 is about 1439.6662647696. Note that the first 3 decimals are identical.

The spelling of 2983908381 in words is "two billion, nine hundred eighty-three million, nine hundred eight thousand, three hundred eighty-one".

Divisors: 1 3 23 69 43245049 129735147 994636127 2983908381