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3889911 = 331151277
BaseRepresentation
bin1110110101101011110111
321022121221210
432311223313
51443434121
6215212503
745030564
oct16655367
97277853
103889911
112217603
121377133
13a6272c
1473386b
1551c876
hex3b5af7

3889911 has 16 divisors (see below), whose sum is σ = 5408768. Its totient is φ = 2484000.

The previous prime is 3889901. The next prime is 3889913. The reversal of 3889911 is 1199883.

It is a happy number.

It is not a de Polignac number, because 3889911 - 29 = 3889399 is a prime.

It is an Ulam number.

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 3889911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889913) 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, 13905 + ... + 14181.

It is an arithmetic number, because the mean of its divisors is an integer number (338048).

Almost surely, 23889911 is an apocalyptic number.

3889911 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3889911 is a deficient number, since it is larger than the sum of its proper divisors (1518857).

3889911 is a wasteful number, since it uses less digits than its factorization.

With its successor (3889912) it forms an eRAP, since the sums of their prime factors are consecutive (462 and 463).

3889911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its digits is 15552, while the sum is 39.

The square root of 3889911 is about 1972.2857298069. The cubic root of 3889911 is about 157.2702419678.

The spelling of 3889911 in words is "three million, eight hundred eighty-nine thousand, nine hundred eleven".

Divisors: 1 3 31 93 151 277 453 831 4681 8587 14043 25761 41827 125481 1296637 3889911