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4881481 = 11443771
BaseRepresentation
bin10010100111110001001001
3100012000010121
4102213301021
52222201411
6252343241
756330503
oct22476111
910160117
104881481
112834590
121774b21
13101bb67
14910d73
15666571
hex4a7c49

4881481 has 4 divisors (see below), whose sum is σ = 5325264. Its totient is φ = 4437700.

The previous prime is 4881473. The next prime is 4881491. The reversal of 4881481 is 1841884.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4881481 - 23 = 4881473 is a prime.

It is a super-2 number, since 2×48814812 = 47657713506722, which contains 22 as substring.

It is a Duffinian number.

4881481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4881421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 221875 + ... + 221896.

It is an arithmetic number, because the mean of its divisors is an integer number (1331316).

Almost surely, 24881481 is an apocalyptic number.

It is an amenable number.

4881481 is a deficient number, since it is larger than the sum of its proper divisors (443783).

4881481 is a wasteful number, since it uses less digits than its factorization.

4881481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443782.

The product of its digits is 8192, while the sum is 34.

The square root of 4881481 is about 2209.4073866085. The cubic root of 4881481 is about 169.6356788478.

The spelling of 4881481 in words is "four million, eight hundred eighty-one thousand, four hundred eighty-one".

Divisors: 1 11 443771 4881481