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39289 = 101389
BaseRepresentation
bin1001100101111001
31222220011
421211321
52224124
6501521
7222355
oct114571
958804
1039289
1127578
121a8a1
1314b63
1410465
15b994
hex9979

39289 has 4 divisors (see below), whose sum is σ = 39780. Its totient is φ = 38800.

The previous prime is 39251. The next prime is 39293. The reversal of 39289 is 98293.

It is a happy number.

39289 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98293 = 137561.

It can be written as a sum of positive squares in 2 ways, for example, as 25600 + 13689 = 160^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 39289 - 27 = 39161 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 39289.

It is not an unprimeable number, because it can be changed into a prime (39209) 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, 94 + ... + 295.

It is an arithmetic number, because the mean of its divisors is an integer number (9945).

239289 is an apocalyptic number.

It is an amenable number.

39289 is a deficient number, since it is larger than the sum of its proper divisors (491).

39289 is a wasteful number, since it uses less digits than its factorization.

39289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its digits is 3888, while the sum is 31.

The square root of 39289 is about 198.2145302444. The cubic root of 39289 is about 33.9956741901.

The spelling of 39289 in words is "thirty-nine thousand, two hundred eighty-nine".

Divisors: 1 101 389 39289