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10666487 = 133492351
BaseRepresentation
bin101000101100…
…000111110111
3202001220200002
4220230013313
510212311422
61020341515
7156443426
oct50540767
922056602
1010666487
116025987
1236a489b
132296040
1415b92bd
15e0a692
hexa2c1f7

10666487 has 8 divisors (see below), whose sum is σ = 11524800. Its totient is φ = 9813600.

The previous prime is 10666459. The next prime is 10666493. The reversal of 10666487 is 78466601.

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 10666487 - 212 = 10662391 is a prime.

It is a super-2 number, since 2×106664872 = 227547889842338, 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 10666487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666417) 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 7 ways as a sum of consecutive naturals, for example, 3362 + ... + 5712.

It is an arithmetic number, because the mean of its divisors is an integer number (1440600).

Almost surely, 210666487 is an apocalyptic number.

10666487 is a deficient number, since it is larger than the sum of its proper divisors (858313).

10666487 is a wasteful number, since it uses less digits than its factorization.

10666487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 10666487 is about 3265.9588178665. The cubic root of 10666487 is about 220.1272473230.

The spelling of 10666487 in words is "ten million, six hundred sixty-six thousand, four hundred eighty-seven".

Divisors: 1 13 349 2351 4537 30563 820499 10666487