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1608081 = 31731531
BaseRepresentation
bin110001000100110010001
310000200212120
412020212101
5402424311
654244453
716445166
oct6104621
93020776
101608081
119a91a2
12656729
13443c37
142dc06d
1521b706
hex188991

1608081 has 8 divisors (see below), whose sum is σ = 2270304. Its totient is φ = 1008960.

The previous prime is 1608041. The next prime is 1608083. The reversal of 1608081 is 1808061.

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

It is not a de Polignac number, because 1608081 - 26 = 1608017 is a prime.

It is a super-2 number, since 2×16080812 = 5171849005122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1608081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1608083) 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, 15715 + ... + 15816.

It is an arithmetic number, because the mean of its divisors is an integer number (283788).

21608081 is an apocalyptic number.

It is an amenable number.

1608081 is a deficient number, since it is larger than the sum of its proper divisors (662223).

1608081 is a wasteful number, since it uses less digits than its factorization.

1608081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31551.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 1608081 is about 1268.1013366447. The cubic root of 1608081 is about 117.1572871802.

It can be divided in two parts, 16080 and 81, that added together give a palindrome (16161).

The spelling of 1608081 in words is "one million, six hundred eight thousand, eighty-one".

Divisors: 1 3 17 51 31531 94593 536027 1608081