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71314218 = 23217213709
BaseRepresentation
bin1000100000000…
…10101100101010
311222012010201100
410100002230222
5121224023333
611024302230
71524106113
oct420025452
9158163640
1071314218
1137289478
121ba71976
1311a0ba81
14968520a
1563da213
hex4402b2a

71314218 has 36 divisors (see below), whose sum is σ = 164149830. Its totient is φ = 22371456.

The previous prime is 71314193. The next prime is 71314247. The reversal of 71314218 is 81241317.

It can be written as a sum of positive squares in 3 ways, for example, as 70509609 + 804609 = 8397^2 + 897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71314191 and 71314200.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1653 + ... + 12056.

Almost surely, 271314218 is an apocalyptic number.

71314218 is an abundant number, since it is smaller than the sum of its proper divisors (92835612).

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

71314218 is a wasteful number, since it uses less digits than its factorization.

71314218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13751 (or 13731 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 71314218 is about 8444.7745973472. The cubic root of 71314218 is about 414.6917302301.

The spelling of 71314218 in words is "seventy-one million, three hundred fourteen thousand, two hundred eighteen".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 289 306 578 867 1734 2601 5202 13709 27418 41127 82254 123381 233053 246762 466106 699159 1398318 2097477 3961901 4194954 7923802 11885703 23771406 35657109 71314218