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3995693 = 13307361
BaseRepresentation
bin1111001111100000101101
321112000001122
433033200231
52010330233
6221350325
745651152
oct17174055
97460048
103995693
11228a029
1214083a5
13a9b920
14760229
1553dd98
hex3cf82d

3995693 has 4 divisors (see below), whose sum is σ = 4303068. Its totient is φ = 3688320.

The previous prime is 3995687. The next prime is 3995699. The reversal of 3995693 is 3965993.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3995687) and next prime (3995699).

It can be written as a sum of positive squares in 2 ways, for example, as 316969 + 3678724 = 563^2 + 1918^2 .

It is a cyclic number.

It is not a de Polignac number, because 3995693 - 28 = 3995437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153668 + ... + 153693.

It is an arithmetic number, because the mean of its divisors is an integer number (1075767).

Almost surely, 23995693 is an apocalyptic number.

It is an amenable number.

3995693 is a deficient number, since it is larger than the sum of its proper divisors (307375).

3995693 is a wasteful number, since it uses less digits than its factorization.

3995693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307374.

The product of its digits is 196830, while the sum is 44.

The square root of 3995693 is about 1998.9229599962. The cubic root of 3995693 is about 158.6831102661.

The spelling of 3995693 in words is "three million, nine hundred ninety-five thousand, six hundred ninety-three".

Divisors: 1 13 307361 3995693