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3969198 = 232220511
BaseRepresentation
bin1111001001000010101110
321110122201100
433021002232
52004003243
6221023530
745511002
oct17110256
97418640
103969198
112271132
1213b4ba6
13a8c84c
14754702
155360d3
hex3c90ae

3969198 has 12 divisors (see below), whose sum is σ = 8599968. Its totient is φ = 1323060.

The previous prime is 3969193. The next prime is 3969221. The reversal of 3969198 is 8919693.

3969198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110238 + ... + 110273.

It is an arithmetic number, because the mean of its divisors is an integer number (716664).

Almost surely, 23969198 is an apocalyptic number.

3969198 is an abundant number, since it is smaller than the sum of its proper divisors (4630770).

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

3969198 is a wasteful number, since it uses less digits than its factorization.

3969198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220519 (or 220516 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 3969198 is about 1992.2846182210. The cubic root of 3969198 is about 158.3315954257.

Subtracting from 3969198 its sum of digits (45), we obtain a triangular number (3969153 = T2817).

The spelling of 3969198 in words is "three million, nine hundred sixty-nine thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 9 18 220511 441022 661533 1323066 1984599 3969198