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71331341 = 312301011
BaseRepresentation
bin1000100000001…
…10111000001101
311222020000012112
410100012320031
5121230100331
611024513405
71524210044
oct420067015
9158200175
1071331341
11372a0324
121ba7b865
1311a167c3
14968b55b
1563e032b
hex4406e0d

71331341 has 4 divisors (see below), whose sum is σ = 73632384. Its totient is φ = 69030300.

The previous prime is 71331331. The next prime is 71331361. The reversal of 71331341 is 14313317.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14313317 = 129111087.

It is a cyclic number.

It is not a de Polignac number, because 71331341 - 26 = 71331277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71331331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150475 + ... + 1150536.

It is an arithmetic number, because the mean of its divisors is an integer number (18408096).

Almost surely, 271331341 is an apocalyptic number.

It is an amenable number.

71331341 is a deficient number, since it is larger than the sum of its proper divisors (2301043).

71331341 is a wasteful number, since it uses less digits than its factorization.

71331341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301042.

The product of its digits is 756, while the sum is 23.

The square root of 71331341 is about 8445.7883587028. The cubic root of 71331341 is about 414.7249176199.

Adding to 71331341 its reverse (14313317), we get a palindrome (85644658).

The spelling of 71331341 in words is "seventy-one million, three hundred thirty-one thousand, three hundred forty-one".

Divisors: 1 31 2301011 71331341