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6148669789 = 12175052317
BaseRepresentation
bin1011011100111110…
…10100000101011101
3120212111210210021201
411232133110011131
5100043024413124
62454043155501
7305240554663
oct55637240535
916774723251
106148669789
112675844689
121237215b91
1376cb20362
1442486cc33
1525ec03144
hex16e7d415d

6148669789 has 4 divisors (see below), whose sum is σ = 6153723324. Its totient is φ = 6143616256.

The previous prime is 6148669757. The next prime is 6148669817. The reversal of 6148669789 is 9879668416.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3393994564 + 2754675225 = 58258^2 + 52485^2 .

It is a cyclic number.

It is not a de Polignac number, because 6148669789 - 25 = 6148669757 is a prime.

It is a super-2 number, since 2×61486697892 = 75612280348322609042, which contains 22 as substring.

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 6148669789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6148669729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524942 + ... + 2527375.

It is an arithmetic number, because the mean of its divisors is an integer number (1538430831).

Almost surely, 26148669789 is an apocalyptic number.

It is an amenable number.

6148669789 is a deficient number, since it is larger than the sum of its proper divisors (5053535).

6148669789 is a wasteful number, since it uses less digits than its factorization.

6148669789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053534.

The product of its digits is 31352832, while the sum is 64.

The square root of 6148669789 is about 78413.4541325658. The cubic root of 6148669789 is about 1832.0066960920.

The spelling of 6148669789 in words is "six billion, one hundred forty-eight million, six hundred sixty-nine thousand, seven hundred eighty-nine".

Divisors: 1 1217 5052317 6148669789