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71275 = 522851
BaseRepresentation
bin10001011001101011
310121202211
4101121223
54240100
61305551
7414541
oct213153
9117684
1071275
1149606
12352b7
1326599
141bd91
15161ba
hex1166b

71275 has 6 divisors (see below), whose sum is σ = 88412. Its totient is φ = 57000.

The previous prime is 71263. The next prime is 71287. The reversal of 71275 is 57217.

It is an interprime number because it is at equal distance from previous prime (71263) and next prime (71287).

It is not a de Polignac number, because 71275 - 27 = 71147 is a prime.

It is a Duffinian number.

71275 is a lucky number.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1401 + ... + 1450.

271275 is an apocalyptic number.

71275 is a deficient number, since it is larger than the sum of its proper divisors (17137).

71275 is a wasteful number, since it uses less digits than its factorization.

71275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861 (or 2856 counting only the distinct ones).

The product of its digits is 490, while the sum is 22.

The square root of 71275 is about 266.9737814842. The cubic root of 71275 is about 41.4615698816.

Subtracting from 71275 its sum of digits (22), we obtain a triangular number (71253 = T377).

It can be divided in two parts, 712 and 75, that added together give a palindrome (787).

The spelling of 71275 in words is "seventy-one thousand, two hundred seventy-five".

Divisors: 1 5 25 2851 14255 71275