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20014417 = 173311549
BaseRepresentation
bin100110001011…
…0010101010001
31101122211121201
41030112111101
520110430132
61552551201
7332056033
oct114262521
941584551
1020014417
1110330145
126852501
1341b9b67
14292dc53
151b552e7
hex1316551

20014417 has 4 divisors (see below), whose sum is σ = 20027700. Its totient is φ = 20001136.

The previous prime is 20014381. The next prime is 20014427. The reversal of 20014417 is 71441002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15178816 + 4835601 = 3896^2 + 2199^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014417 - 215 = 19981649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20014394 and 20014403.

It is not an unprimeable number, because it can be changed into a prime (20014427) 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 3 ways as a sum of consecutive naturals, for example, 4042 + ... + 7507.

It is an arithmetic number, because the mean of its divisors is an integer number (5006925).

Almost surely, 220014417 is an apocalyptic number.

It is an amenable number.

20014417 is a deficient number, since it is larger than the sum of its proper divisors (13283).

20014417 is a wasteful number, since it uses less digits than its factorization.

20014417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13282.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20014417 is about 4473.7475342268. The cubic root of 20014417 is about 271.5069689251.

Adding to 20014417 its reverse (71441002), we get a palindrome (91455419).

The spelling of 20014417 in words is "twenty million, fourteen thousand, four hundred seventeen".

Divisors: 1 1733 11549 20014417