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49928943 = 316642981
BaseRepresentation
bin1011111001110…
…1101011101111
310110221122122010
42332131223233
5100240211233
64542052303
71144250301
oct276355357
9113848563
1049928943
1126202399
121487a093
13a461c6c
1468b9971
1545b3b63
hex2f9daef

49928943 has 4 divisors (see below), whose sum is σ = 66571928. Its totient is φ = 33285960.

The previous prime is 49928933. The next prime is 49928951. The reversal of 49928943 is 34982994.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 49928943 - 28 = 49928687 is a prime.

It is a super-3 number, since 3×499289433 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49928892 and 49928901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49928933) 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, 8321488 + ... + 8321493.

It is an arithmetic number, because the mean of its divisors is an integer number (16642982).

Almost surely, 249928943 is an apocalyptic number.

49928943 is a deficient number, since it is larger than the sum of its proper divisors (16642985).

49928943 is a wasteful number, since it uses less digits than its factorization.

49928943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16642984.

The product of its digits is 559872, while the sum is 48.

The square root of 49928943 is about 7066.0415368154. The cubic root of 49928943 is about 368.2285496433.

The spelling of 49928943 in words is "forty-nine million, nine hundred twenty-eight thousand, nine hundred forty-three".

Divisors: 1 3 16642981 49928943