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10863985 = 511217957
BaseRepresentation
bin101001011100…
…010101110001
3202102221120211
4221130111301
510240121420
61024504121
7161225266
oct51342561
922387524
1010863985
116150300
12377b041
132334bc2
14162b26d
15e48e5a
hexa5c571

10863985 has 12 divisors (see below), whose sum is σ = 14330484. Its totient is φ = 7900640.

The previous prime is 10863973. The next prime is 10864093. The reversal of 10863985 is 58936801.

It is a happy number.

10863985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8625969 + 2238016 = 2937^2 + 1496^2 .

It is not a de Polignac number, because 10863985 - 29 = 10863473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8374 + ... + 9583.

It is an arithmetic number, because the mean of its divisors is an integer number (1194207).

Almost surely, 210863985 is an apocalyptic number.

It is an amenable number.

10863985 is a deficient number, since it is larger than the sum of its proper divisors (3466499).

10863985 is a wasteful number, since it uses less digits than its factorization.

10863985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17984 (or 17973 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 10863985 is about 3296.0559764664. The cubic root of 10863985 is about 221.4775542991.

The spelling of 10863985 in words is "ten million, eight hundred sixty-three thousand, nine hundred eighty-five".

Divisors: 1 5 11 55 121 605 17957 89785 197527 987635 2172797 10863985