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40341231 = 3272412657
BaseRepresentation
bin1001100111100…
…0111011101111
32210220112202200
42121320323233
540311404411
64000352543
7666615630
oct231707357
983815680
1040341231
1120853a67
1211615753
138485c68
145501887
15381ce56
hex2678eef

40341231 has 24 divisors (see below), whose sum is σ = 66896544. Its totient is φ = 22947840.

The previous prime is 40341209. The next prime is 40341239. The reversal of 40341231 is 13214304.

It is not a de Polignac number, because 40341231 - 211 = 40339183 is a prime.

It is a super-2 number, since 2×403412312 = 3254829837190722, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40341239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13855 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (2787356).

Almost surely, 240341231 is an apocalyptic number.

40341231 is a deficient number, since it is larger than the sum of its proper divisors (26555313).

40341231 is a wasteful number, since it uses less digits than its factorization.

40341231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40341231 is about 6351.4747106479. The cubic root of 40341231 is about 342.9649316600.

Adding to 40341231 its reverse (13214304), we get a palindrome (53555535).

The spelling of 40341231 in words is "forty million, three hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 3 7 9 21 63 241 723 1687 2169 2657 5061 7971 15183 18599 23913 55797 167391 640337 1921011 4482359 5763033 13447077 40341231