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71060651 = 531340767
BaseRepresentation
bin1000011110001…
…00110010101011
311221201020212222
410033010302223
5121142420101
611015024255
71522001624
oct417046253
9157636788
1071060651
1137125a12
121b96b08b
131195052c
14961aa4b
15638a01b
hex43c4cab

71060651 has 4 divisors (see below), whose sum is σ = 72401472. Its totient is φ = 69719832.

The previous prime is 71060623. The next prime is 71060659. The reversal of 71060651 is 15606017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71060651 - 222 = 66866347 is a prime.

It is a super-2 number, since 2×710606512 = 10099232241087602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71060651.

It is not an unprimeable number, because it can be changed into a prime (71060659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670331 + ... + 670436.

It is an arithmetic number, because the mean of its divisors is an integer number (18100368).

Almost surely, 271060651 is an apocalyptic number.

71060651 is a deficient number, since it is larger than the sum of its proper divisors (1340821).

71060651 is a wasteful number, since it uses less digits than its factorization.

71060651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340820.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 71060651 is about 8429.7479796255. The cubic root of 71060651 is about 414.1996497116.

Adding to 71060651 its reverse (15606017), we get a palindrome (86666668).

The spelling of 71060651 in words is "seventy-one million, sixty thousand, six hundred fifty-one".

Divisors: 1 53 1340767 71060651