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4920393 = 31640131
BaseRepresentation
bin10010110001010001001001
3100020222111210
4102301101021
52224423033
6253243333
756552112
oct22612111
910228453
104920393
112860845
121793549
13103379a
14921209
15672d63
hex4b1449

4920393 has 4 divisors (see below), whose sum is σ = 6560528. Its totient is φ = 3280260.

The previous prime is 4920389. The next prime is 4920397. The reversal of 4920393 is 3930294.

4920393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (4920389) and next prime (4920397).

It is not a de Polignac number, because 4920393 - 22 = 4920389 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4920393.

It is not an unprimeable number, because it can be changed into a prime (4920397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820063 + ... + 820068.

It is an arithmetic number, because the mean of its divisors is an integer number (1640132).

Almost surely, 24920393 is an apocalyptic number.

It is an amenable number.

4920393 is a deficient number, since it is larger than the sum of its proper divisors (1640135).

4920393 is a wasteful number, since it uses less digits than its factorization.

4920393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640134.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 4920393 is about 2218.1958885545. The cubic root of 4920393 is about 170.0852283138.

Subtracting from 4920393 its reverse (3930294), we obtain a palindrome (990099).

The spelling of 4920393 in words is "four million, nine hundred twenty thousand, three hundred ninety-three".

Divisors: 1 3 1640131 4920393