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8012661 = 317198269
BaseRepresentation
bin11110100100001101110101
3120002002022020
4132210031311
54022401121
6443423353
7125051346
oct36441565
916062266
108012661
114583038
122824b59
131877127
1410c80cd
15a841c6
hex7a4375

8012661 has 16 divisors (see below), whose sum is σ = 11908800. Its totient is φ = 4762368.

The previous prime is 8012659. The next prime is 8012681. The reversal of 8012661 is 1662108.

It is not a de Polignac number, because 8012661 - 21 = 8012659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3166 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (744300).

Almost surely, 28012661 is an apocalyptic number.

It is an amenable number.

8012661 is a deficient number, since it is larger than the sum of its proper divisors (3896139).

8012661 is a wasteful number, since it uses less digits than its factorization.

8012661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8012661 is about 2830.6644096395. The cubic root of 8012661 is about 200.1054527222.

Adding to 8012661 its reverse (1662108), we get a palindrome (9674769).

The spelling of 8012661 in words is "eight million, twelve thousand, six hundred sixty-one".

Divisors: 1 3 17 19 51 57 323 969 8269 24807 140573 157111 421719 471333 2670887 8012661