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1989348 = 223165779
BaseRepresentation
bin111100101101011100100
310202001212120
413211223210
51002124343
6110345540
722623564
oct7455344
93661776
101989348
111139699
127bb2b0
1354863a
1439ada4
15294683
hex1e5ae4

1989348 has 12 divisors (see below), whose sum is σ = 4641840. Its totient is φ = 663112.

The previous prime is 1989341. The next prime is 1989353. The reversal of 1989348 is 8439891.

1989348 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1989341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82878 + ... + 82901.

It is an arithmetic number, because the mean of its divisors is an integer number (386820).

21989348 is an apocalyptic number.

It is an amenable number.

1989348 is an abundant number, since it is smaller than the sum of its proper divisors (2652492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1989348 is a wasteful number, since it uses less digits than its factorization.

1989348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165786 (or 165784 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 1989348 is about 1410.4424837617. The cubic root of 1989348 is about 125.7680287236.

The spelling of 1989348 in words is "one million, nine hundred eighty-nine thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 165779 331558 497337 663116 994674 1989348