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12066747 = 371152237
BaseRepresentation
bin101110000001…
…111110111011
3211201001110120
4232001332323
511042113442
61110344323
7204365010
oct56017673
924631416
1012066747
1168a1a20
12405b0a3
1326664b4
141861707
1510d54ec
hexb81fbb

12066747 has 16 divisors (see below), whose sum is σ = 20059392. Its totient is φ = 6268320.

The previous prime is 12066721. The next prime is 12066749. The reversal of 12066747 is 74766021.

It is not a de Polignac number, because 12066747 - 26 = 12066683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12066749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25888 + ... + 26349.

It is an arithmetic number, because the mean of its divisors is an integer number (1253712).

Almost surely, 212066747 is an apocalyptic number.

12066747 is a deficient number, since it is larger than the sum of its proper divisors (7992645).

12066747 is a wasteful number, since it uses less digits than its factorization.

12066747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52258.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 12066747 is about 3473.7223550537. The cubic root of 12066747 is about 229.3665430337.

It can be divided in two parts, 1206674 and 7, that added together give a triangular number (1206681 = T1553).

The spelling of 12066747 in words is "twelve million, sixty-six thousand, seven hundred forty-seven".

Divisors: 1 3 7 11 21 33 77 231 52237 156711 365659 574607 1096977 1723821 4022249 12066747