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50045913 = 3219927943
BaseRepresentation
bin1011111011101…
…0001111011001
310111011121002100
42332322033121
5100302432123
64544354013
71145245311
oct276721731
9114147070
1050045913
1126282265
1214915909
13a4a3288
14690a441
1545d8643
hex2fba3d9

50045913 has 12 divisors (see below), whose sum is σ = 72654400. Its totient is φ = 33195096.

The previous prime is 50045903. The next prime is 50045917. The reversal of 50045913 is 31954005.

It is not a de Polignac number, because 50045913 - 25 = 50045881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50045917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12181 + ... + 15762.

Almost surely, 250045913 is an apocalyptic number.

It is an amenable number.

50045913 is a deficient number, since it is larger than the sum of its proper divisors (22608487).

50045913 is a wasteful number, since it uses less digits than its factorization.

50045913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28148 (or 28145 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 50045913 is about 7074.3136062801. The cubic root of 50045913 is about 368.5158786584.

Adding to 50045913 its reverse (31954005), we get a palindrome (81999918).

The spelling of 50045913 in words is "fifty million, forty-five thousand, nine hundred thirteen".

Divisors: 1 3 9 199 597 1791 27943 83829 251487 5560657 16681971 50045913