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71712703 = 31274623
BaseRepresentation
bin1000100011000…
…11111110111111
311222221101100001
410101203332333
5121324301303
611041015131
71530355636
oct421437677
9158841301
1071712703
11375308a7
12200244a7
1311b1b26a
14974a51d
15646831d
hex4463fbf

71712703 has 6 divisors (see below), whose sum is σ = 74101632. Its totient is φ = 69398460.

The previous prime is 71712701. The next prime is 71712757. The reversal of 71712703 is 30721717.

It is not a de Polignac number, because 71712703 - 21 = 71712701 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 (71712701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36351 + ... + 38272.

It is an arithmetic number, because the mean of its divisors is an integer number (12350272).

Almost surely, 271712703 is an apocalyptic number.

71712703 is a deficient number, since it is larger than the sum of its proper divisors (2388929).

71712703 is an equidigital number, since it uses as much as digits as its factorization.

71712703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74685 (or 74654 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 71712703 is about 8468.3353145704. The cubic root of 71712703 is about 415.4626919564.

The spelling of 71712703 in words is "seventy-one million, seven hundred twelve thousand, seven hundred three".

Divisors: 1 31 961 74623 2313313 71712703