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3930137 = 4195857
BaseRepresentation
bin1110111111100000011001
321101200010122
432333200121
52001231022
6220123025
745256061
oct16774031
97350118
103930137
112244852
121396475
13a77b33
147443a1
15529742
hex3bf819

3930137 has 4 divisors (see below), whose sum is σ = 4026036. Its totient is φ = 3834240.

The previous prime is 3930061. The next prime is 3930139. The reversal of 3930137 is 7310393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7310393 = 21113463.

It can be written as a sum of positive squares in 2 ways, for example, as 259081 + 3671056 = 509^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 3930137 - 220 = 2881561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3930139) 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, 47888 + ... + 47969.

It is an arithmetic number, because the mean of its divisors is an integer number (1006509).

Almost surely, 23930137 is an apocalyptic number.

It is an amenable number.

3930137 is a deficient number, since it is larger than the sum of its proper divisors (95899).

3930137 is an equidigital number, since it uses as much as digits as its factorization.

3930137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95898.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 3930137 is about 1982.4573135379. The cubic root of 3930137 is about 157.8105002589.

The spelling of 3930137 in words is "three million, nine hundred thirty thousand, one hundred thirty-seven".

Divisors: 1 41 95857 3930137