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20016073 = 711259949
BaseRepresentation
bin100110001011…
…0101111001001
31101122220220001
41030112233021
520111003243
61553003001
7332063620
oct114265711
941586801
1020016073
1110331410
126853461
1341ba83c
1429306b7
151b55a4d
hex1316bc9

20016073 has 8 divisors (see below), whose sum is σ = 24955200. Its totient is φ = 15596880.

The previous prime is 20016067. The next prime is 20016103. The reversal of 20016073 is 37061002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20016073 - 213 = 20007881 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 20016073.

It is not an unprimeable number, because it can be changed into a prime (20016013) 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 7 ways as a sum of consecutive naturals, for example, 129898 + ... + 130051.

It is an arithmetic number, because the mean of its divisors is an integer number (3119400).

Almost surely, 220016073 is an apocalyptic number.

It is an amenable number.

20016073 is a deficient number, since it is larger than the sum of its proper divisors (4939127).

20016073 is a wasteful number, since it uses less digits than its factorization.

20016073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259967.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20016073 is about 4473.9326101317. The cubic root of 20016073 is about 271.5144569130.

Adding to 20016073 its reverse (37061002), we get a palindrome (57077075).

The spelling of 20016073 in words is "twenty million, sixteen thousand, seventy-three".

Divisors: 1 7 11 77 259949 1819643 2859439 20016073