Search a number
-
+
20300469 = 377571277
BaseRepresentation
bin100110101110…
…0001010110101
31102012101000020
41031130022311
520144103334
62003035353
7334360020
oct115341265
942171006
1020300469
1110506052
12696bb59
13428a117
1429a61b7
151baee49
hex135c2b5

20300469 has 16 divisors (see below), whose sum is σ = 30999168. Its totient is φ = 11575872.

The previous prime is 20300459. The next prime is 20300477. The reversal of 20300469 is 96400302.

It is not a de Polignac number, because 20300469 - 29 = 20299957 is a prime.

It is a super-2 number, since 2×203004692 = 824218083239922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300419) 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 15 ways as a sum of consecutive naturals, for example, 15259 + ... + 16535.

It is an arithmetic number, because the mean of its divisors is an integer number (1937448).

Almost surely, 220300469 is an apocalyptic number.

It is an amenable number.

20300469 is a deficient number, since it is larger than the sum of its proper divisors (10698699).

20300469 is a wasteful number, since it uses less digits than its factorization.

20300469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20300469 is about 4505.6041770222. The cubic root of 20300469 is about 272.7943412124.

The spelling of 20300469 in words is "twenty million, three hundred thousand, four hundred sixty-nine".

Divisors: 1 3 7 21 757 1277 2271 3831 5299 8939 15897 26817 966689 2900067 6766823 20300469