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4981761 = 32553529
BaseRepresentation
bin10011000000010000000001
3100101002200200
4103000100001
52233404021
6254435413
760226041
oct23002001
910332620
104981761
1128a2964
121802b69
1310556b5
14939721
15686126
hex4c0401

4981761 has 6 divisors (see below), whose sum is σ = 7195890. Its totient is φ = 3321168.

The previous prime is 4981759. The next prime is 4981763. The reversal of 4981761 is 1671894.

It is an interprime number because it is at equal distance from previous prime (4981759) and next prime (4981763).

It can be written as a sum of positive squares in only one way, i.e., 4928400 + 53361 = 2220^2 + 231^2 .

It is not a de Polignac number, because 4981761 - 21 = 4981759 is a prime.

It is a super-2 number, since 2×49817612 = 49635885322242, which contains 22 as substring.

4981761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4981763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276756 + ... + 276773.

It is an arithmetic number, because the mean of its divisors is an integer number (1199315).

Almost surely, 24981761 is an apocalyptic number.

It is an amenable number.

4981761 is a deficient number, since it is larger than the sum of its proper divisors (2214129).

4981761 is a wasteful number, since it uses less digits than its factorization.

4981761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553535 (or 553532 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 4981761 is about 2231.9858870522. The cubic root of 4981761 is about 170.7894196599.

It can be divided in two parts, 49 and 81761, that added together give a triangular number (81810 = T404).

The spelling of 4981761 in words is "four million, nine hundred eighty-one thousand, seven hundred sixty-one".

Divisors: 1 3 9 553529 1660587 4981761