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49905708 = 2234158809
BaseRepresentation
bin1011111001100…
…0000000101100
310110220110202120
42332120000230
5100233440313
64541352540
71144122456
oct276300054
9113813676
1049905708
1126196996
1214868750
13a454508
1468b12d6
1545abd23
hex2f9802c

49905708 has 12 divisors (see below), whose sum is σ = 116446680. Its totient is φ = 16635232.

The previous prime is 49905707. The next prime is 49905721. The reversal of 49905708 is 80750994.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 49905708.

It is not an unprimeable number, because it can be changed into a prime (49905703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2079393 + ... + 2079416.

It is an arithmetic number, because the mean of its divisors is an integer number (9703890).

Almost surely, 249905708 is an apocalyptic number.

It is an amenable number.

49905708 is an abundant number, since it is smaller than the sum of its proper divisors (66540972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49905708 is a wasteful number, since it uses less digits than its factorization.

49905708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158816 (or 4158814 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 49905708 is about 7064.3972142002. The cubic root of 49905708 is about 368.1714210030.

The spelling of 49905708 in words is "forty-nine million, nine hundred five thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 4158809 8317618 12476427 16635236 24952854 49905708