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4813985 = 511273109
BaseRepresentation
bin10010010111010010100001
3100001120112202
4102113102201
52213021420
6251102545
755626641
oct22272241
910046482
104813985
112798900
121741a55
13cc7217
148d4521
15651575
hex4974a1

4813985 has 24 divisors (see below), whose sum is σ = 6495720. Its totient is φ = 3421440.

The previous prime is 4813961. The next prime is 4813997. The reversal of 4813985 is 5893184.

It can be written as a sum of positive squares in 4 ways, for example, as 937024 + 3876961 = 968^2 + 1969^2 .

It is not a de Polignac number, because 4813985 - 216 = 4748449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44111 + ... + 44219.

It is an arithmetic number, because the mean of its divisors is an integer number (270655).

Almost surely, 24813985 is an apocalyptic number.

It is an amenable number.

4813985 is a deficient number, since it is larger than the sum of its proper divisors (1681735).

4813985 is a wasteful number, since it uses less digits than its factorization.

4813985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 198 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 4813985 is about 2194.0795336541. The cubic root of 4813985 is about 168.8501992945.

The spelling of 4813985 in words is "four million, eight hundred thirteen thousand, nine hundred eighty-five".

Divisors: 1 5 11 55 73 109 121 365 545 605 803 1199 4015 5995 7957 8833 13189 39785 44165 65945 87527 437635 962797 4813985