Search a number
-
+
20314137 = 36771379
BaseRepresentation
bin100110101111…
…1100000011001
31102020001202110
41031133200121
520200023022
62003222533
7334444614
oct115374031
942201673
1020314137
1110515348
126977a49
1342933cc
1429ab17b
151bb400c
hex135f819

20314137 has 4 divisors (see below), whose sum is σ = 27085520. Its totient is φ = 13542756.

The previous prime is 20314127. The next prime is 20314163. The reversal of 20314137 is 73141302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-20314137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20314117) 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 3 ways as a sum of consecutive naturals, for example, 3385687 + ... + 3385692.

It is an arithmetic number, because the mean of its divisors is an integer number (6771380).

Almost surely, 220314137 is an apocalyptic number.

It is an amenable number.

20314137 is a deficient number, since it is larger than the sum of its proper divisors (6771383).

20314137 is an equidigital number, since it uses as much as digits as its factorization.

20314137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771382.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20314137 is about 4507.1206995154. The cubic root of 20314137 is about 272.8555502510.

Adding to 20314137 its reverse (73141302), we get a palindrome (93455439).

The spelling of 20314137 in words is "twenty million, three hundred fourteen thousand, one hundred thirty-seven".

Divisors: 1 3 6771379 20314137