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71080854 = 2313911293
BaseRepresentation
bin1000011110010…
…01101110010110
311221202021121020
410033021232112
5121144041404
611015302010
71522114545
oct417115626
9157667536
1071080854
113713a109
121b97a906
13119597a0
14962415c
156390ed9
hex43c9b96

71080854 has 16 divisors (see below), whose sum is σ = 153097392. Its totient is φ = 21871008.

The previous prime is 71080853. The next prime is 71080883. The reversal of 71080854 is 45808017.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71080853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455569 + ... + 455724.

It is an arithmetic number, because the mean of its divisors is an integer number (9568587).

Almost surely, 271080854 is an apocalyptic number.

71080854 is an abundant number, since it is smaller than the sum of its proper divisors (82016538).

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

71080854 is a wasteful number, since it uses less digits than its factorization.

71080854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911311.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 71080854 is about 8430.9462102424. The cubic root of 71080854 is about 414.2388992001.

The spelling of 71080854 in words is "seventy-one million, eighty thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 78 911293 1822586 2733879 5467758 11846809 23693618 35540427 71080854