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39312 = 2433713
BaseRepresentation
bin1001100110010000
31222221000
421212100
52224222
6502000
7222420
oct114620
958830
1039312
1127599
121a900
1314b80
1410480
15b9ac
hex9990

39312 has 80 divisors (see below), whose sum is σ = 138880. Its totient is φ = 10368.

The previous prime is 39301. The next prime is 39313. The reversal of 39312 is 21393.

It can be divided in two parts, 39 and 312, that added together give a triangular number (351 = T26).

39312 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 39312 = 23 + 343 = 153 + 333.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 39312.

It is not an unprimeable number, because it can be changed into a prime (39313) by changing a digit.

39312 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3018 + ... + 3030.

It is an arithmetic number, because the mean of its divisors is an integer number (1736).

239312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69440).

39312 is an abundant number, since it is smaller than the sum of its proper divisors (99568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39312 is a wasteful number, since it uses less digits than its factorization.

39312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37 (or 25 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 39312 is about 198.2725397023. The cubic root of 39312 is about 34.0023066486.

The spelling of 39312 in words is "thirty-nine thousand, three hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 36 39 42 48 52 54 56 63 72 78 84 91 104 108 112 117 126 144 156 168 182 189 208 216 234 252 273 312 336 351 364 378 432 468 504 546 624 702 728 756 819 936 1008 1092 1404 1456 1512 1638 1872 2184 2457 2808 3024 3276 4368 4914 5616 6552 9828 13104 19656 39312