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9895985 = 51131487
BaseRepresentation
bin100101110000…
…000000110001
3200121202201222
4211300000301
510013132420
6552034425
7150054161
oct45600061
920552658
109895985
11564a000
123392a15
132086418
1414585a1
15d07225
hex970031

9895985 has 16 divisors (see below), whose sum is σ = 13070592. Its totient is φ = 7192240.

The previous prime is 9895981. The next prime is 9895993. The reversal of 9895985 is 5895989.

It is not a de Polignac number, because 9895985 - 22 = 9895981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9895981) 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, 5912 + ... + 7398.

It is an arithmetic number, because the mean of its divisors is an integer number (816912).

Almost surely, 29895985 is an apocalyptic number.

It is an amenable number.

9895985 is a deficient number, since it is larger than the sum of its proper divisors (3174607).

9895985 is a wasteful number, since it uses less digits than its factorization.

9895985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525 (or 1503 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 53.

The square root of 9895985 is about 3145.7884544260. The cubic root of 9895985 is about 214.6938856197.

The spelling of 9895985 in words is "nine million, eight hundred ninety-five thousand, nine hundred eighty-five".

Divisors: 1 5 11 55 121 605 1331 1487 6655 7435 16357 81785 179927 899635 1979197 9895985