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71368911 = 3317914767
BaseRepresentation
bin1000100000100…
…00000011001111
311222021220202000
410100100003033
5121232301121
611025403343
71524424425
oct420200317
9158256660
1071368911
1137316579
121ba99553
1311a2a933
14969b115
1563eb526
hex44100cf

71368911 has 16 divisors (see below), whose sum is σ = 106329600. Its totient is φ = 47310264.

The previous prime is 71368897. The next prime is 71368919. The reversal of 71368911 is 11986317.

It is not a de Polignac number, because 71368911 - 27 = 71368783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71368919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2551 + ... + 12216.

It is an arithmetic number, because the mean of its divisors is an integer number (6645600).

Almost surely, 271368911 is an apocalyptic number.

71368911 is a deficient number, since it is larger than the sum of its proper divisors (34960689).

71368911 is a wasteful number, since it uses less digits than its factorization.

71368911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14955 (or 14949 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 71368911 is about 8448.0122514116. The cubic root of 71368911 is about 414.7977162907.

The spelling of 71368911 in words is "seventy-one million, three hundred sixty-eight thousand, nine hundred eleven".

Divisors: 1 3 9 27 179 537 1611 4833 14767 44301 132903 398709 2643293 7929879 23789637 71368911