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49820051 = 198725073
BaseRepresentation
bin1011111000001…
…1000110010011
310110202010021002
42332003012103
5100223220201
64535452215
71143314651
oct276030623
9113663232
1049820051
11261385a6
121482706b
13a424528
14688bdd1
15459176b
hex2f83193

49820051 has 4 divisors (see below), whose sum is σ = 49847112. Its totient is φ = 49792992.

The previous prime is 49820039. The next prime is 49820059. The reversal of 49820051 is 15002894.

49820051 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.

It is a cyclic number.

It is not a de Polignac number, because 49820051 - 214 = 49803667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49819996 and 49820023.

It is not an unprimeable number, because it can be changed into a prime (49820059) 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, 10550 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (12461778).

Almost surely, 249820051 is an apocalyptic number.

49820051 is a deficient number, since it is larger than the sum of its proper divisors (27061).

49820051 is a wasteful number, since it uses less digits than its factorization.

49820051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27060.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 49820051 is about 7058.3320267610. The cubic root of 49820051 is about 367.9606600787.

The spelling of 49820051 in words is "forty-nine million, eight hundred twenty thousand, fifty-one".

Divisors: 1 1987 25073 49820051