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49971937 = 421111867
BaseRepresentation
bin1011111010100…
…0001011100001
310111000211121111
42332220023201
5100243100222
64543023321
71144516531
oct276501341
9114024544
1049971937
1126231724
121489ab41
13a4786c2
1468cb4c1
1545c1777
hex2fa82e1

49971937 has 4 divisors (see below), whose sum is σ = 49988016. Its totient is φ = 49955860.

The previous prime is 49971917. The next prime is 49971947. The reversal of 49971937 is 73917994.

It is a happy number.

49971937 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.

It is a cyclic number.

It is not a de Polignac number, because 49971937 - 211 = 49969889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49971917) 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, 1723 + ... + 10144.

It is an arithmetic number, because the mean of its divisors is an integer number (12497004).

Almost surely, 249971937 is an apocalyptic number.

It is an amenable number.

49971937 is a deficient number, since it is larger than the sum of its proper divisors (16079).

49971937 is a wasteful number, since it uses less digits than its factorization.

49971937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16078.

The product of its digits is 428652, while the sum is 49.

The square root of 49971937 is about 7069.0831795927. The cubic root of 49971937 is about 368.3342136481.

The spelling of 49971937 in words is "forty-nine million, nine hundred seventy-one thousand, nine hundred thirty-seven".

Divisors: 1 4211 11867 49971937