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83117710130837 = 239553734696901
BaseRepresentation
bin10010111001100001011001…
…100101100011111010010101
3101220021222100010111111121112
4102321201121211203322111
541343300032243141322
6452435425432424405
723336025225021434
oct2271413145437225
9356258303444545
1083117710130837
1124536028549388
1293a4928b48105
13374bc743405c5
141674cc0a4111b
159921380b35e2
hex4b9859963e95

83117710130837 has 4 divisors (see below), whose sum is σ = 83117747223276. Its totient is φ = 83117673038400.

The previous prime is 83117710130821. The next prime is 83117710130843. The reversal of 83117710130837 is 73803101771138.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51880241406436 + 31237468724401 = 7202794^2 + 5589049^2 .

It is a cyclic number.

It is not a de Polignac number, because 83117710130837 - 24 = 83117710130821 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 (83119710130837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14952914 + ... + 19743987.

It is an arithmetic number, because the mean of its divisors is an integer number (20779436805819).

Almost surely, 283117710130837 is an apocalyptic number.

It is an amenable number.

83117710130837 is a deficient number, since it is larger than the sum of its proper divisors (37092439).

83117710130837 is a wasteful number, since it uses less digits than its factorization.

83117710130837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37092438.

The product of its (nonzero) digits is 592704, while the sum is 50.

The spelling of 83117710130837 in words is "eighty-three trillion, one hundred seventeen billion, seven hundred ten million, one hundred thirty thousand, eight hundred thirty-seven".

Divisors: 1 2395537 34696901 83117710130837