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71203 = 116473
BaseRepresentation
bin10001011000100011
310121200011
4101120203
54234303
61305351
7414406
oct213043
9117604
1071203
1149550
1235257
1326542
141bd3d
151616d
hex11623

71203 has 4 divisors (see below), whose sum is σ = 77688. Its totient is φ = 64720.

The previous prime is 71191. The next prime is 71209. The reversal of 71203 is 30217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71203 - 25 = 71171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226 + ... + 3247.

It is an arithmetic number, because the mean of its divisors is an integer number (19422).

271203 is an apocalyptic number.

71203 is a deficient number, since it is larger than the sum of its proper divisors (6485).

71203 is a wasteful number, since it uses less digits than its factorization.

71203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 71203 is about 266.8389027110. The cubic root of 71203 is about 41.4476040741.

The spelling of 71203 in words is "seventy-one thousand, two hundred three", and thus it is an iban number.

Divisors: 1 11 6473 71203