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199038983 = 111310113781
BaseRepresentation
bin10111101110100…
…01100000000111
3111212112020011012
423313101200013
5401423221413
631430032435
74634542403
oct1367214007
9455466135
10199038983
11a2396a30
12567a871b
133230ba60
141c612103
15127197a8
hexbdd1807

199038983 has 16 divisors (see below), whose sum is σ = 236168352. Its totient is φ = 165360000.

The previous prime is 199038979. The next prime is 199039039. The reversal of 199038983 is 389830991.

199038983 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 199038983 - 22 = 199038979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199038283) 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, 7553 + ... + 21333.

It is an arithmetic number, because the mean of its divisors is an integer number (14760522).

Almost surely, 2199038983 is an apocalyptic number.

199038983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

199038983 is a deficient number, since it is larger than the sum of its proper divisors (37129369).

199038983 is a wasteful number, since it uses less digits than its factorization.

199038983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13906.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 199038983 is about 14108.1176278056. The cubic root of 199038983 is about 583.8653664358.

The spelling of 199038983 in words is "one hundred ninety-nine million, thirty-eight thousand, nine hundred eighty-three".

Divisors: 1 11 13 101 143 1111 1313 13781 14443 151591 179153 1391881 1970683 15310691 18094453 199038983