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47890983 = 3721033163
BaseRepresentation
bin1011011010110…
…0001000100111
310100010010002010
42312230020213
544230002413
64430245303
71121031600
oct266541047
9110103063
1047890983
1125040228
1214056833
139bca47a
146508da7
15430edc3
hex2dac227

47890983 has 24 divisors (see below), whose sum is σ = 75024768. Its totient is φ = 27092016.

The previous prime is 47890967. The next prime is 47891021. The reversal of 47890983 is 38909874.

47890983 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 47890983 - 24 = 47890967 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47890903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13560 + ... + 16722.

It is an arithmetic number, because the mean of its divisors is an integer number (3126032).

Almost surely, 247890983 is an apocalyptic number.

47890983 is a deficient number, since it is larger than the sum of its proper divisors (27133785).

47890983 is a wasteful number, since it uses less digits than its factorization.

47890983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283 (or 3276 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 47890983 is about 6920.3311336958. The cubic root of 47890983 is about 363.1487752372.

It can be divided in two parts, 4 and 7890983, that added together give a palindrome (7890987).

The spelling of 47890983 in words is "forty-seven million, eight hundred ninety thousand, nine hundred eighty-three".

Divisors: 1 3 7 21 49 103 147 309 721 2163 3163 5047 9489 15141 22141 66423 154987 325789 464961 977367 2280523 6841569 15963661 47890983