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20127950 = 252402559
BaseRepresentation
bin100110011001…
…0000011001110
31101212121100122
41030302003032
520123043300
61555224542
7333041033
oct114620316
941777318
1020127950
11103a8477
1268a8152
13422973b
14295d38a
151b78c85
hex13320ce

20127950 has 12 divisors (see below), whose sum is σ = 37438080. Its totient is φ = 8051160.

The previous prime is 20127937. The next prime is 20127953. The reversal of 20127950 is 5972102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127953) 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 5 ways as a sum of consecutive naturals, for example, 201230 + ... + 201329.

It is an arithmetic number, because the mean of its divisors is an integer number (3119840).

Almost surely, 220127950 is an apocalyptic number.

20127950 is a deficient number, since it is larger than the sum of its proper divisors (17310130).

20127950 is a wasteful number, since it uses less digits than its factorization.

20127950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402571 (or 402566 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 20127950 is about 4486.4183933289. The cubic root of 20127950 is about 272.0193811882.

The spelling of 20127950 in words is "twenty million, one hundred twenty-seven thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 402559 805118 2012795 4025590 10063975 20127950