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49368769 = 139355171
BaseRepresentation
bin1011110001010…
…0111011000001
310102220012012221
42330110323001
5100114300034
64522051041
71136425162
oct274247301
9112805187
1049368769
112595a53a
1214649a81
13a2c6cb8
1467b1769
154502bb4
hex2f14ec1

49368769 has 4 divisors (see below), whose sum is σ = 49724080. Its totient is φ = 49013460.

The previous prime is 49368757. The next prime is 49368779. The reversal of 49368769 is 96786394.

49368769 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 96786394 = 248393197.

It is a cyclic number.

It is not a de Polignac number, because 49368769 - 211 = 49366721 is a prime.

It is a super-2 number, since 2×493687692 = 4874550705150722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49368719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177447 + ... + 177724.

It is an arithmetic number, because the mean of its divisors is an integer number (12431020).

Almost surely, 249368769 is an apocalyptic number.

It is an amenable number.

49368769 is a deficient number, since it is larger than the sum of its proper divisors (355311).

49368769 is a wasteful number, since it uses less digits than its factorization.

49368769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355310.

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

The square root of 49368769 is about 7026.2912692259. The cubic root of 49368769 is about 366.8462630738.

The spelling of 49368769 in words is "forty-nine million, three hundred sixty-eight thousand, seven hundred sixty-nine".

Divisors: 1 139 355171 49368769