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71708 = 22713197
BaseRepresentation
bin10001100000011100
310122100212
4101200130
54243313
61311552
7416030
oct214034
9118325
1071708
114996a
12355b8
1326840
141c1c0
15163a8
hex1181c

71708 has 24 divisors (see below), whose sum is σ = 155232. Its totient is φ = 28224.

The previous prime is 71707. The next prime is 71711. The reversal of 71708 is 80717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71707) 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, 266 + ... + 462.

It is an arithmetic number, because the mean of its divisors is an integer number (6468).

271708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77616).

71708 is an abundant number, since it is smaller than the sum of its proper divisors (83524).

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

71708 is a wasteful number, since it uses less digits than its factorization.

71708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 71708 is about 267.7834946370. The cubic root of 71708 is about 41.5453609587.

Subtracting 71708 from its reverse (80717), we obtain a palindrome (9009).

The spelling of 71708 in words is "seventy-one thousand, seven hundred eight".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 197 364 394 788 1379 2561 2758 5122 5516 10244 17927 35854 71708