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4909141 = 17288773
BaseRepresentation
bin10010101110100001010101
3100020102002001
4102232201111
52224043031
6253115301
756504236
oct22564125
910212061
104909141
112853346
121788b31
13102b623
1491b08d
1566e861
hex4ae855

4909141 has 4 divisors (see below), whose sum is σ = 5197932. Its totient is φ = 4620352.

The previous prime is 4909117. The next prime is 4909147. The reversal of 4909141 is 1419094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1419094 = 2709547.

It can be written as a sum of positive squares in 2 ways, for example, as 3721041 + 1188100 = 1929^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 4909141 - 25 = 4909109 is a prime.

It is a Duffinian number.

4909141 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4909147) 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, 144370 + ... + 144403.

It is an arithmetic number, because the mean of its divisors is an integer number (1299483).

Almost surely, 24909141 is an apocalyptic number.

It is an amenable number.

4909141 is a deficient number, since it is larger than the sum of its proper divisors (288791).

4909141 is a wasteful number, since it uses less digits than its factorization.

4909141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288790.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 4909141 is about 2215.6581415011. The cubic root of 4909141 is about 169.9554785373.

It can be divided in two parts, 4909 and 141, that added together give a triangular number (5050 = T100).

The spelling of 4909141 in words is "four million, nine hundred nine thousand, one hundred forty-one".

Divisors: 1 17 288773 4909141