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1182081 = 3675881
BaseRepresentation
bin100100000100110000001
32020001111210
410200212001
5300311311
641200333
713022205
oct4404601
92201453
101182081
1173812a
124900a9
13325074
1422ab05
151853a6
hex120981

1182081 has 8 divisors (see below), whose sum is σ = 1599904. Its totient is φ = 776160.

The previous prime is 1182073. The next prime is 1182121. The reversal of 1182081 is 1802811.

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

It is not a de Polignac number, because 1182081 - 23 = 1182073 is a prime.

It is a super-2 number, since 2×11820812 = 2794630981122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

1182081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1182031) 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, 2740 + ... + 3141.

It is an arithmetic number, because the mean of its divisors is an integer number (199988).

21182081 is an apocalyptic number.

It is an amenable number.

1182081 is a deficient number, since it is larger than the sum of its proper divisors (417823).

1182081 is an equidigital number, since it uses as much as digits as its factorization.

1182081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5951.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 1182081 is about 1087.2354850721. The cubic root of 1182081 is about 105.7342637640.

Subtracting from 1182081 its product of nonzero digits (128), we obtain a triangular number (1181953 = T1537).

Adding to 1182081 its reverse (1802811), we get a palindrome (2984892).

The spelling of 1182081 in words is "one million, one hundred eighty-two thousand, eighty-one".

Divisors: 1 3 67 201 5881 17643 394027 1182081