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71834317 = 211340447
BaseRepresentation
bin1000100100000…
…01101011001101
312000011120011021
410102001223031
5121342144232
611043354141
71531403332
oct422015315
9160146137
1071834317
1137604205
1220082951
1311b61719
14977c989
15648e397
hex4481acd

71834317 has 4 divisors (see below), whose sum is σ = 72174976. Its totient is φ = 71493660.

The previous prime is 71834309. The next prime is 71834369. The reversal of 71834317 is 71343817.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71343817 = 255127967.

It is a cyclic number.

It is not a de Polignac number, because 71834317 - 23 = 71834309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71834017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170013 + ... + 170434.

It is an arithmetic number, because the mean of its divisors is an integer number (18043744).

Almost surely, 271834317 is an apocalyptic number.

It is an amenable number.

71834317 is a deficient number, since it is larger than the sum of its proper divisors (340659).

71834317 is a wasteful number, since it uses less digits than its factorization.

71834317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340658.

The product of its digits is 14112, while the sum is 34.

The square root of 71834317 is about 8475.5127868466. The cubic root of 71834317 is about 415.6974134819.

The spelling of 71834317 in words is "seventy-one million, eight hundred thirty-four thousand, three hundred seventeen".

Divisors: 1 211 340447 71834317