Search a number
-
+
71843103141 = 323947701047
BaseRepresentation
bin100001011101000101…
…1101100000110100101
320212102212110210001220
41002322023230012211
52134113313300031
653000531010553
75122224205125
oct1027213540645
9225385423056
1071843103141
1128517616807
1211b10139a59
136a0c249824
14369770cc85
151d07330596
hex10ba2ec1a5

71843103141 has 4 divisors (see below), whose sum is σ = 95790804192. Its totient is φ = 47895402092.

The previous prime is 71843103139. The next prime is 71843103187. The reversal of 71843103141 is 14130134817.

It is a happy number.

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 cyclic number.

It is not a de Polignac number, because 71843103141 - 21 = 71843103139 is a prime.

It is a super-2 number, since 2×718431031412 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71843103041) 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 3 ways as a sum of consecutive naturals, for example, 11973850521 + ... + 11973850526.

It is an arithmetic number, because the mean of its divisors is an integer number (23947701048).

Almost surely, 271843103141 is an apocalyptic number.

It is an amenable number.

71843103141 is a deficient number, since it is larger than the sum of its proper divisors (23947701051).

71843103141 is a wasteful number, since it uses less digits than its factorization.

71843103141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23947701050.

The product of its (nonzero) digits is 8064, while the sum is 33.

Adding to 71843103141 its reverse (14130134817), we get a palindrome (85973237958).

The spelling of 71843103141 in words is "seventy-one billion, eight hundred forty-three million, one hundred three thousand, one hundred forty-one".

Divisors: 1 3 23947701047 71843103141