Search a number
-
+
41993131 = 291448039
BaseRepresentation
bin1010000000110…
…0001110101011
32221000110202011
42200030032223
541222240011
64100020351
71016635645
oct240141653
987013664
1041993131
1121782074
12120916b7
138913b0b
145811895
153a47621
hex280c3ab

41993131 has 4 divisors (see below), whose sum is σ = 43441200. Its totient is φ = 40545064.

The previous prime is 41993129. The next prime is 41993141. The reversal of 41993131 is 13139914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13139914 = 26569957.

It is a cyclic number.

It is not a de Polignac number, because 41993131 - 21 = 41993129 is a prime.

It is a super-2 number, since 2×419931312 = 3526846102366322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41993093 and 41993102.

It is not an unprimeable number, because it can be changed into a prime (41993141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723991 + ... + 724048.

It is an arithmetic number, because the mean of its divisors is an integer number (10860300).

Almost surely, 241993131 is an apocalyptic number.

41993131 is a deficient number, since it is larger than the sum of its proper divisors (1448069).

41993131 is a wasteful number, since it uses less digits than its factorization.

41993131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448068.

The product of its digits is 2916, while the sum is 31.

The square root of 41993131 is about 6480.2107218824. The cubic root of 41993131 is about 347.5837135928.

It can be divided in two parts, 41993 and 131, that added together give a palindrome (42124).

The spelling of 41993131 in words is "forty-one million, nine hundred ninety-three thousand, one hundred thirty-one".

Divisors: 1 29 1448039 41993131