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10866985 = 511871831
BaseRepresentation
bin101001011101…
…000100101001
3202110002200221
4221131010221
510240220420
61024530041
7161240113
oct51350451
922402627
1010866985
116152588
123780921
13233638c
14162c3b3
15e49caa
hexa5d129

10866985 has 8 divisors (see below), whose sum is σ = 13058496. Its totient is φ = 8681520.

The previous prime is 10866983. The next prime is 10866991. The reversal of 10866985 is 58966801.

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

It is not a de Polignac number, because 10866985 - 21 = 10866983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10866983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5020 + ... + 6850.

It is an arithmetic number, because the mean of its divisors is an integer number (1632312).

Almost surely, 210866985 is an apocalyptic number.

It is an amenable number.

10866985 is a deficient number, since it is larger than the sum of its proper divisors (2191511).

10866985 is a wasteful number, since it uses less digits than its factorization.

10866985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 10866985 is about 3296.5110344120. The cubic root of 10866985 is about 221.4979388238.

The spelling of 10866985 in words is "ten million, eight hundred sixty-six thousand, nine hundred eighty-five".

Divisors: 1 5 1187 1831 5935 9155 2173397 10866985