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8120038892347 = 40174812706787
BaseRepresentation
bin111011000101001100000…
…0010001010001100111011
31001202021020110201221122001
41312022120002022030323
52031014314424023342
625134143330041431
71465440063524344
oct166123002121473
931667213657561
108120038892347
1126507642a1798
12ab1874719277
1346b940b77b45
14201024c2b0cb
15e134a54e8b7
hex7629808a33b

8120038892347 has 8 divisors (see below), whose sum is σ = 8141379502032. Its totient is φ = 8098703712000.

The previous prime is 8120038892341. The next prime is 8120038892429. The reversal of 8120038892347 is 7432988300218.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8120038892347 is a prime.

It is a super-2 number, since 2×81200388923472 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8120038892341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646488 + ... + 4353274.

It is an arithmetic number, because the mean of its divisors is an integer number (1017672437754).

Almost surely, 28120038892347 is an apocalyptic number.

8120038892347 is a deficient number, since it is larger than the sum of its proper divisors (21340609685).

8120038892347 is a wasteful number, since it uses less digits than its factorization.

8120038892347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714669.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 8120038892347 in words is "eight trillion, one hundred twenty billion, thirty-eight million, eight hundred ninety-two thousand, three hundred forty-seven".

Divisors: 1 401 7481 2706787 2999881 1085421587 20249473547 8120038892347