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81711362714 = 249183209127
BaseRepresentation
bin100110000011001100…
…0000111001010011010
321210220121100022022012
41030012120013022122
52314321102101324
6101312050025522
75621612060162
oct1140630071232
9253817308265
1081711362714
1131720a30233
1213a04b782a2
13792285c287
143d5217b5a2
1521d386920e
hex130660729a

81711362714 has 8 divisors (see below), whose sum is σ = 122816672928. Its totient is φ = 40772471740.

The previous prime is 81711362701. The next prime is 81711362749. The reversal of 81711362714 is 41726311718.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41603582 + ... + 41605545.

It is an arithmetic number, because the mean of its divisors is an integer number (15352084116).

Almost surely, 281711362714 is an apocalyptic number.

81711362714 is a deficient number, since it is larger than the sum of its proper divisors (41105310214).

81711362714 is a wasteful number, since it uses less digits than its factorization.

81711362714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83209620.

The product of its digits is 56448, while the sum is 41.

The spelling of 81711362714 in words is "eighty-one billion, seven hundred eleven million, three hundred sixty-two thousand, seven hundred fourteen".

Divisors: 1 2 491 982 83209127 166418254 40855681357 81711362714