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71268966 = 2323959387
BaseRepresentation
bin1000011111101…
…11101001100110
311222002211122100
410033313221212
5121221101331
611023312530
71523530146
oct417675146
9158084570
1071268966
113725847a
121ba4b746
13119c42b2
149672926
1563cbae6
hex43f7a66

71268966 has 12 divisors (see below), whose sum is σ = 154416132. Its totient is φ = 23756316.

The previous prime is 71268961. The next prime is 71268983. The reversal of 71268966 is 66986217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71268961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1979676 + ... + 1979711.

It is an arithmetic number, because the mean of its divisors is an integer number (12868011).

Almost surely, 271268966 is an apocalyptic number.

71268966 is an abundant number, since it is smaller than the sum of its proper divisors (83147166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71268966 is a wasteful number, since it uses less digits than its factorization.

71268966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959395 (or 3959392 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 71268966 is about 8442.0948821960. The cubic root of 71268966 is about 414.6039983055.

The spelling of 71268966 in words is "seventy-one million, two hundred sixty-eight thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 9 18 3959387 7918774 11878161 23756322 35634483 71268966