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4639141 = 13432193
BaseRepresentation
bin10001101100100110100101
322201200201001
4101230212211
52141423031
6243233301
754301123
oct21544645
98650631
104639141
112689501
121678831
13c65770
1488a913
15619861
hex46c9a5

4639141 has 12 divisors (see below), whose sum is σ = 5141388. Its totient is φ = 4161024.

The previous prime is 4639139. The next prime is 4639189. The reversal of 4639141 is 1419364.

It can be written as a sum of positive squares in 2 ways, for example, as 894916 + 3744225 = 946^2 + 1935^2 .

It is not a de Polignac number, because 4639141 - 21 = 4639139 is a prime.

It is a Duffinian number.

4639141 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639121) 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 11 ways as a sum of consecutive naturals, for example, 23941 + ... + 24133.

It is an arithmetic number, because the mean of its divisors is an integer number (428449).

Almost surely, 24639141 is an apocalyptic number.

It is an amenable number.

4639141 is a deficient number, since it is larger than the sum of its proper divisors (502247).

4639141 is a wasteful number, since it uses less digits than its factorization.

4639141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 249 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 4639141 is about 2153.8665232553. The cubic root of 4639141 is about 166.7807250374.

It can be divided in two parts, 463 and 9141, that added together give a square (9604 = 982).

The spelling of 4639141 in words is "four million, six hundred thirty-nine thousand, one hundred forty-one".

Divisors: 1 13 43 193 559 1849 2509 8299 24037 107887 356857 4639141