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389484983 = 2511551733
BaseRepresentation
bin10111001101110…
…001000110110111
31000010212212221202
4113031301012313
51244202004413
6102352003115
712436365506
oct2715610667
91003785852
10389484983
1118a943918
12aa53049b
13628cc4b4
1439a2883d
15242d7e58
hex173711b7

389484983 has 4 divisors (see below), whose sum is σ = 391036968. Its totient is φ = 387933000.

The previous prime is 389484947. The next prime is 389485007.

It is a happy number.

389484983 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389484983 - 28 = 389484727 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 (389484083) 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 3 ways as a sum of consecutive naturals, for example, 775616 + ... + 776117.

It is an arithmetic number, because the mean of its divisors is an integer number (97759242).

Almost surely, 2389484983 is an apocalyptic number.

389484983 is a deficient number, since it is larger than the sum of its proper divisors (1551985).

389484983 is a wasteful number, since it uses less digits than its factorization.

389484983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551984.

The product of its digits is 5971968, while the sum is 56.

The square root of 389484983 is about 19735.3739006891. The cubic root of 389484983 is about 730.2926099118.

The spelling of 389484983 in words is "three hundred eighty-nine million, four hundred eighty-four thousand, nine hundred eighty-three".

Divisors: 1 251 1551733 389484983