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49768693 = 133828361
BaseRepresentation
bin1011110111011…
…0100011110101
310110122111210221
42331312203311
5100220044233
64534414341
71143012142
oct275664365
9113574727
1049768693
1126102a57
12148013b1
13a407040
1468773c9
15458142d
hex2f768f5

49768693 has 4 divisors (see below), whose sum is σ = 53597068. Its totient is φ = 45940320.

The previous prime is 49768681. The next prime is 49768721. The reversal of 49768693 is 39686794.

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 5373124 + 44395569 = 2318^2 + 6663^2 .

It is a cyclic number.

It is not a de Polignac number, because 49768693 - 25 = 49768661 is a prime.

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 49768693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49768613) 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 3 ways as a sum of consecutive naturals, for example, 1914168 + ... + 1914193.

It is an arithmetic number, because the mean of its divisors is an integer number (13399267).

Almost surely, 249768693 is an apocalyptic number.

It is an amenable number.

49768693 is a deficient number, since it is larger than the sum of its proper divisors (3828375).

49768693 is a wasteful number, since it uses less digits than its factorization.

49768693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828374.

The product of its digits is 1959552, while the sum is 52.

The square root of 49768693 is about 7054.6929770189. The cubic root of 49768693 is about 367.8341767276.

The spelling of 49768693 in words is "forty-nine million, seven hundred sixty-eight thousand, six hundred ninety-three".

Divisors: 1 13 3828361 49768693