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4869471921 = 315431051949
BaseRepresentation
bin1001000100011111…
…00011111010110001
3110120100202210200220
410202033203322301
534433041100141
62123105403253
7231445554066
oct44217437261
913510683626
104869471921
112079765366
12b3a939529
135c7ab9942
14342a04c6d
151d7771766
hex1223e3eb1

4869471921 has 8 divisors (see below), whose sum is σ = 6496843200. Its totient is φ = 3244207632.

The previous prime is 4869471911. The next prime is 4869471947. The reversal of 4869471921 is 1291749684.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4869471921 - 217 = 4869340849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4869471911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521346 + ... + 530603.

It is an arithmetic number, because the mean of its divisors is an integer number (812105400).

Almost surely, 24869471921 is an apocalyptic number.

It is an amenable number.

4869471921 is a deficient number, since it is larger than the sum of its proper divisors (1627371279).

4869471921 is a wasteful number, since it uses less digits than its factorization.

4869471921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053495.

The product of its digits is 870912, while the sum is 51.

The square root of 4869471921 is about 69781.6015938299. The cubic root of 4869471921 is about 1694.9645599572.

The spelling of 4869471921 in words is "four billion, eight hundred sixty-nine million, four hundred seventy-one thousand, nine hundred twenty-one".

Divisors: 1 3 1543 4629 1051949 3155847 1623157307 4869471921