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4809913 = 25119163
BaseRepresentation
bin10010010110010010111001
3100001100221221
4102112102321
52212404123
6251032041
755612033
oct22262271
910040857
104809913
112795839
12173b621
13cc5404
148d2c53
1565025d
hex4964b9

4809913 has 4 divisors (see below), whose sum is σ = 4829328. Its totient is φ = 4790500.

The previous prime is 4809901. The next prime is 4809941. The reversal of 4809913 is 3199084.

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 4809913 - 25 = 4809881 is a prime.

It is a super-3 number, since 3×48099133 (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

4809913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4809943) 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, 9331 + ... + 9832.

It is an arithmetic number, because the mean of its divisors is an integer number (1207332).

Almost surely, 24809913 is an apocalyptic number.

It is an amenable number.

4809913 is a deficient number, since it is larger than the sum of its proper divisors (19415).

4809913 is a wasteful number, since it uses less digits than its factorization.

4809913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19414.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 4809913 is about 2193.1513855637. The cubic root of 4809913 is about 168.8025774896.

The spelling of 4809913 in words is "four million, eight hundred nine thousand, nine hundred thirteen".

Divisors: 1 251 19163 4809913