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49806899 = 479103981
BaseRepresentation
bin1011110111111…
…1111000110011
310110201110012222
42331333320303
5100222310044
64535311255
71143231422
oct275777063
9113643188
1049806899
112612972a
121481b52b
13a41b54c
1468872b9
15458c8ee
hex2f7fe33

49806899 has 4 divisors (see below), whose sum is σ = 49911360. Its totient is φ = 49702440.

The previous prime is 49806877. The next prime is 49806907. The reversal of 49806899 is 99860894.

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 49806899 - 28 = 49806643 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 49806899.

It is not an unprimeable number, because it can be changed into a prime (49806839) 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, 51512 + ... + 52469.

It is an arithmetic number, because the mean of its divisors is an integer number (12477840).

Almost surely, 249806899 is an apocalyptic number.

49806899 is a deficient number, since it is larger than the sum of its proper divisors (104461).

49806899 is a wasteful number, since it uses less digits than its factorization.

49806899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104460.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 49806899 is about 7057.4003003939. The cubic root of 49806899 is about 367.9282779058.

It can be divided in two parts, 49806 and 899, that added together give a palindrome (50705).

The spelling of 49806899 in words is "forty-nine million, eight hundred six thousand, eight hundred ninety-nine".

Divisors: 1 479 103981 49806899