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889381 = 47127149
BaseRepresentation
bin11011001001000100101
31200012000001
43121020211
5211430011
631021301
710362643
oct3311045
91605001
10889381
11558229
1236a831
13251a7c
14192193
151287c1
hexd9225

889381 has 8 divisors (see below), whose sum is σ = 921600. Its totient is φ = 857808.

The previous prime is 889373. The next prime is 889391. The reversal of 889381 is 183988.

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

It is a cyclic number.

It is not a de Polignac number, because 889381 - 23 = 889373 is a prime.

It is a super-2 number, since 2×8893812 = 1581997126322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 889381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5895 + ... + 6043.

It is an arithmetic number, because the mean of its divisors is an integer number (115200).

2889381 is an apocalyptic number.

It is an amenable number.

889381 is a deficient number, since it is larger than the sum of its proper divisors (32219).

889381 is a wasteful number, since it uses less digits than its factorization.

889381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its digits is 13824, while the sum is 37.

The square root of 889381 is about 943.0699867984. The cubic root of 889381 is about 96.1677117564.

It can be divided in two parts, 88 and 9381, that multiplied together give a palindrome (825528).

The spelling of 889381 in words is "eight hundred eighty-nine thousand, three hundred eighty-one".

Divisors: 1 47 127 149 5969 7003 18923 889381