Search a number
-
+
384231069 = 32593072357
BaseRepresentation
bin10110111001101…
…110011010011101
3222202222221221100
4112321232122131
51241330343234
6102043223313
712343624125
oct2671563235
9882887840
10384231069
11187985542
12a8817b39
13617acc81
143905bc85
1523aeb399
hex16e6e69d

384231069 has 24 divisors (see below), whose sum is σ = 566485920. Its totient is φ = 250885728.

The previous prime is 384231061. The next prime is 384231083. The reversal of 384231069 is 960132483.

It is not a de Polignac number, because 384231069 - 23 = 384231061 is a prime.

It is a super-2 number, since 2×3842310692 = 295267028769765522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384231061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161839 + ... + 164195.

It is an arithmetic number, because the mean of its divisors is an integer number (23603580).

Almost surely, 2384231069 is an apocalyptic number.

It is an amenable number.

384231069 is a deficient number, since it is larger than the sum of its proper divisors (182254851).

384231069 is a wasteful number, since it uses less digits than its factorization.

384231069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 384231069 is about 19601.8129008518. The cubic root of 384231069 is about 726.9939996490.

The spelling of 384231069 in words is "three hundred eighty-four million, two hundred thirty-one thousand, sixty-nine".

Divisors: 1 3 9 59 177 307 531 921 2357 2763 7071 18113 21213 54339 139063 163017 417189 723599 1251567 2170797 6512391 42692341 128077023 384231069