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49880071 = 367135913
BaseRepresentation
bin1011111001000…
…1110000000111
310110212011121001
42332101300013
5100232130241
64541034131
71143654643
oct276216007
9113764531
1049880071
11261796aa
1214855947
13a445947
1468a5c23
1545a4431
hex2f91c07

49880071 has 4 divisors (see below), whose sum is σ = 50016352. Its totient is φ = 49743792.

The previous prime is 49880063. The next prime is 49880081. The reversal of 49880071 is 17008894.

49880071 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 49880071 - 23 = 49880063 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 49880071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49880021) 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, 67590 + ... + 68323.

It is an arithmetic number, because the mean of its divisors is an integer number (12504088).

Almost surely, 249880071 is an apocalyptic number.

49880071 is a deficient number, since it is larger than the sum of its proper divisors (136281).

49880071 is a wasteful number, since it uses less digits than its factorization.

49880071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136280.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 49880071 is about 7062.5824596956. The cubic root of 49880071 is about 368.1083659082.

The spelling of 49880071 in words is "forty-nine million, eight hundred eighty thousand, seventy-one".

Divisors: 1 367 135913 49880071