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39001 = 43907
BaseRepresentation
bin1001100001011001
31222111111
421201121
52222001
6500321
7221464
oct114131
958444
1039001
1127336
121a6a1
13149a1
14102db
15b851
hex9859

39001 has 4 divisors (see below), whose sum is σ = 39952. Its totient is φ = 38052.

The previous prime is 38993. The next prime is 39019. The reversal of 39001 is 10093.

It is a happy number.

39001 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39001 - 23 = 38993 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (39041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411 + ... + 496.

It is an arithmetic number, because the mean of its divisors is an integer number (9988).

239001 is an apocalyptic number.

It is an amenable number.

39001 is a deficient number, since it is larger than the sum of its proper divisors (951).

39001 is an equidigital number, since it uses as much as digits as its factorization.

39001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 39001 is about 197.4867084135. The cubic root of 39001 is about 33.9124042748.

Adding to 39001 its reverse (10093), we get a palindrome (49094).

The spelling of 39001 in words is "thirty-nine thousand, one".

Divisors: 1 43 907 39001