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20314111 = 121316747
BaseRepresentation
bin100110101111…
…1011111111111
31102020001201111
41031133133333
520200022421
62003222451
7334444546
oct115373777
942201644
1020314111
1110515324
126977a27
1342933ac
1429ab15d
151bb3ee1
hex135f7ff

20314111 has 4 divisors (see below), whose sum is σ = 20332072. Its totient is φ = 20296152.

The previous prime is 20314081. The next prime is 20314117. The reversal of 20314111 is 11141302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11141302 = 25570651.

It is a cyclic number.

It is not a de Polignac number, because 20314111 - 211 = 20312063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20314091 and 20314100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7161 + ... + 9586.

It is an arithmetic number, because the mean of its divisors is an integer number (5083018).

Almost surely, 220314111 is an apocalyptic number.

20314111 is a deficient number, since it is larger than the sum of its proper divisors (17961).

20314111 is a wasteful number, since it uses less digits than its factorization.

20314111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17960.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 20314111 is about 4507.1178151897. The cubic root of 20314111 is about 272.8554338420.

Adding to 20314111 its reverse (11141302), we get a palindrome (31455413).

The spelling of 20314111 in words is "twenty million, three hundred fourteen thousand, one hundred eleven".

Divisors: 1 1213 16747 20314111