Search a number
-
+
4812985 = 519291747
BaseRepresentation
bin10010010111000010111001
3100001112011201
4102113002321
52213003420
6251054201
755624012
oct22270271
910045151
104812985
112798081
121741361
13cc6928
148d4009
1565110a
hex4970b9

4812985 has 16 divisors (see below), whose sum is σ = 6292800. Its totient is φ = 3519936.

The previous prime is 4812943. The next prime is 4812991. The reversal of 4812985 is 5892184.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4812985 is a prime.

It is a super-2 number, since 2×48129852 = 46329649220450, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1882 + ... + 3628.

It is an arithmetic number, because the mean of its divisors is an integer number (393300).

Almost surely, 24812985 is an apocalyptic number.

It is an amenable number.

4812985 is a deficient number, since it is larger than the sum of its proper divisors (1479815).

4812985 is a wasteful number, since it uses less digits than its factorization.

4812985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800.

The product of its digits is 23040, while the sum is 37.

The square root of 4812985 is about 2193.8516358223. The cubic root of 4812985 is about 168.8385068407.

The spelling of 4812985 in words is "four million, eight hundred twelve thousand, nine hundred eighty-five".

Divisors: 1 5 19 29 95 145 551 1747 2755 8735 33193 50663 165965 253315 962597 4812985