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4874221 = 1171792
BaseRepresentation
bin10010100101111111101101
3100011122011201
4102211333231
52221433341
6252245501
756300362
oct22457755
910148151
104874221
11282a090
121770891
131018771
1490c469
15664331
hex4a5fed

4874221 has 12 divisors (see below), whose sum is σ = 5461344. Its totient is φ = 4313400.

The previous prime is 4874213. The next prime is 4874231. The reversal of 4874221 is 1224784.

It is not a de Polignac number, because 4874221 - 23 = 4874213 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 4874221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4874201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61660 + ... + 61738.

It is an arithmetic number, because the mean of its divisors is an integer number (455112).

Almost surely, 24874221 is an apocalyptic number.

It is an amenable number.

4874221 is a deficient number, since it is larger than the sum of its proper divisors (587123).

4874221 is an equidigital number, since it uses as much as digits as its factorization.

With its successor (4874222) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (240).

4874221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 161 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 4874221 is about 2207.7638007722. The cubic root of 4874221 is about 169.5515400330.

It can be divided in two parts, 4 and 874221, that added together give a square (874225 = 9352).

The spelling of 4874221 in words is "four million, eight hundred seventy-four thousand, two hundred twenty-one".

Divisors: 1 11 71 79 781 869 5609 6241 61699 68651 443111 4874221