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39069 = 331447
BaseRepresentation
bin1001100010011101
31222121000
421202131
52222234
6500513
7221622
oct114235
958530
1039069
1127398
121a739
1314a24
1410349
15b899
hex989d

39069 has 8 divisors (see below), whose sum is σ = 57920. Its totient is φ = 26028.

The previous prime is 39047. The next prime is 39079. The reversal of 39069 is 96093.

39069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39069 - 29 = 38557 is a prime.

It is a super-2 number, since 2×390692 = 3052773522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1447 = 39069 / (3 + 9 + 0 + 6 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (7240).

239069 is an apocalyptic number.

It is an amenable number.

39069 is a deficient number, since it is larger than the sum of its proper divisors (18851).

39069 is a wasteful number, since it uses less digits than its factorization.

39069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 39069 is about 197.6587969203. The cubic root of 39069 is about 33.9321020993.

The spelling of 39069 in words is "thirty-nine thousand, sixty-nine".

Divisors: 1 3 9 27 1447 4341 13023 39069