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71216976157 = 1928611310123
BaseRepresentation
bin100001001010011011…
…1001101000100011101
320210211020022020022121
41002110313031010131
52131323021214112
652414442542541
75100552211045
oct1022467150435
9223736266277
1071216976157
1128226143298
1211976507a51
13693c603aa2
1436384c4725
151cbc3a1407
hex1094dcd11d

71216976157 has 8 divisors (see below), whose sum is σ = 74991497760. Its totient is φ = 67445080560.

The previous prime is 71216976139. The next prime is 71216976161. The reversal of 71216976157 is 75167961217.

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

It is a cyclic number.

It is not a de Polignac number, because 71216976157 - 27 = 71216976029 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 (71216976137) 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 7 ways as a sum of consecutive naturals, for example, 600703 + ... + 709420.

It is an arithmetic number, because the mean of its divisors is an integer number (9373937220).

Almost surely, 271216976157 is an apocalyptic number.

It is an amenable number.

71216976157 is a deficient number, since it is larger than the sum of its proper divisors (3774521603).

71216976157 is a wasteful number, since it uses less digits than its factorization.

71216976157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313003.

The product of its digits is 1111320, while the sum is 52.

The spelling of 71216976157 in words is "seventy-one billion, two hundred sixteen million, nine hundred seventy-six thousand, one hundred fifty-seven".

Divisors: 1 19 2861 54359 1310123 24892337 3748261903 71216976157