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12077081 = 83227641
BaseRepresentation
bin101110000100…
…100000011001
3211201120122022
4232010200121
511042431311
61110504225
7204440102
oct56044031
924646568
1012077081
1168a9765
124065075
13266b103
1418653a9
1510d85db
hexb84819

12077081 has 8 divisors (see below), whose sum is σ = 12295584. Its totient is φ = 11860480.

The previous prime is 12077077. The next prime is 12077129. The reversal of 12077081 is 18077021.

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 12077081 - 22 = 12077077 is a prime.

It is a super-2 number, since 2×120770812 = 291711770961122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12077081.

It is not an unprimeable number, because it can be changed into a prime (12077071) 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, 18521 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (1536948).

Almost surely, 212077081 is an apocalyptic number.

It is an amenable number.

12077081 is a deficient number, since it is larger than the sum of its proper divisors (218503).

12077081 is an equidigital number, since it uses as much as digits as its factorization.

12077081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 12077081 is about 3475.2094900883. The cubic root of 12077081 is about 229.4320010936.

The spelling of 12077081 in words is "twelve million, seventy-seven thousand, eighty-one".

Divisors: 1 83 227 641 18841 53203 145507 12077081