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49529993 = 172913529
BaseRepresentation
bin1011110011110…
…0010010001001
310110012101101012
42330330102021
5100134424433
64525333305
71140666212
oct274742211
9113171335
1049529993
1125a5a687
1214707235
13a3524b6
146814409
154535848
hex2f3c489

49529993 has 4 divisors (see below), whose sum is σ = 52443540. Its totient is φ = 46616448.

The previous prime is 49529983. The next prime is 49530007. The reversal of 49529993 is 39992594.

49529993 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 an emirpimes, since its reverse is a distinct semiprime: 39992594 = 219996297.

It can be written as a sum of positive squares in 2 ways, for example, as 14341369 + 35188624 = 3787^2 + 5932^2 .

It is not a de Polignac number, because 49529993 - 224 = 32752777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49529923) 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, 1456748 + ... + 1456781.

It is an arithmetic number, because the mean of its divisors is an integer number (13110885).

Almost surely, 249529993 is an apocalyptic number.

It is an amenable number.

49529993 is a deficient number, since it is larger than the sum of its proper divisors (2913547).

49529993 is a wasteful number, since it uses less digits than its factorization.

49529993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913546.

The product of its digits is 787320, while the sum is 50.

The square root of 49529993 is about 7037.7548266475. The cubic root of 49529993 is about 367.2451667860.

The spelling of 49529993 in words is "forty-nine million, five hundred twenty-nine thousand, nine hundred ninety-three".

Divisors: 1 17 2913529 49529993