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3899071 = 11354461
BaseRepresentation
bin1110110111111010111111
321100002112001
432313322333
51444232241
6215323131
745066361
oct16677277
97302461
103899071
112223480
1213804a7
13a66957
14736d31
15520431
hex3b7ebf

3899071 has 4 divisors (see below), whose sum is σ = 4253544. Its totient is φ = 3544600.

The previous prime is 3899057. The next prime is 3899101. The reversal of 3899071 is 1709983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1709983 = 11155453.

It is a cyclic number.

It is not a de Polignac number, because 3899071 - 27 = 3898943 is a prime.

It is a super-3 number, since 3×38990713 (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

3899071 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3899071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3899011) 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, 177220 + ... + 177241.

It is an arithmetic number, because the mean of its divisors is an integer number (1063386).

Almost surely, 23899071 is an apocalyptic number.

3899071 is a deficient number, since it is larger than the sum of its proper divisors (354473).

3899071 is a wasteful number, since it uses less digits than its factorization.

3899071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354472.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 3899071 is about 1974.6065430865. The cubic root of 3899071 is about 157.3935923579.

The spelling of 3899071 in words is "three million, eight hundred ninety-nine thousand, seventy-one".

Divisors: 1 11 354461 3899071