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329989 = 11131229
BaseRepresentation
bin1010000100100000101
3121202122211
41100210011
541024424
611023421
72543032
oct1204405
9552584
10329989
11205a20
1213ab71
13b727a
1488389
1567b94
hex50905

329989 has 8 divisors (see below), whose sum is σ = 364320. Its totient is φ = 296400.

The previous prime is 329977. The next prime is 329993. The reversal of 329989 is 989923.

It is a happy number.

329989 is nontrivially palindromic in base 16.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 329989 - 25 = 329957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329969) 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, 1327 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (45540).

2329989 is an apocalyptic number.

It is an amenable number.

329989 is a deficient number, since it is larger than the sum of its proper divisors (34331).

329989 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (329988) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (371).

329989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its digits is 34992, while the sum is 40.

The square root of 329989 is about 574.4466903029. The cubic root of 329989 is about 69.1034644668.

It can be divided in two parts, 3 and 29989, that added together give a palindrome (29992).

The spelling of 329989 in words is "three hundred twenty-nine thousand, nine hundred eighty-nine".

Divisors: 1 11 131 229 1441 2519 29999 329989