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71368971 = 329820333
BaseRepresentation
bin1000100000100…
…00000100001011
311222021220211020
410100100010023
5121232301341
611025403523
71524424542
oct420200413
9158256736
1071368971
1137316623
121ba995a3
1311a2a97b
14969b159
1563eb566
hex441010b

71368971 has 8 divisors (see below), whose sum is σ = 98440080. Its totient is φ = 45938592.

The previous prime is 71368943. The next prime is 71368981. The reversal of 71368971 is 17986317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71368971 - 25 = 71368939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71368981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410080 + ... + 410253.

It is an arithmetic number, because the mean of its divisors is an integer number (12305010).

Almost surely, 271368971 is an apocalyptic number.

71368971 is a deficient number, since it is larger than the sum of its proper divisors (27071109).

71368971 is a wasteful number, since it uses less digits than its factorization.

71368971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820365.

The product of its digits is 63504, while the sum is 42.

The square root of 71368971 is about 8448.0158025420. The cubic root of 71368971 is about 414.7978325311.

The spelling of 71368971 in words is "seventy-one million, three hundred sixty-eight thousand, nine hundred seventy-one".

Divisors: 1 3 29 87 820333 2460999 23789657 71368971