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83759947485390 = 232511373360168053
BaseRepresentation
bin10011000010110111100001…
…111010101001000011001110
3101222120101001202101111001200
4103002313201322221003032
541434310333024013030
6454050442204050330
723433312403326021
oct2302674172510316
9358511052344050
1083759947485390
1124763437813570
1294892a4b339a6
1337976b57303a7
1416980086951b8
159a3bc6062d60
hex4c2de1ea90ce

83759947485390 has 192 divisors, whose sum is σ = 244005426205632. Its totient is φ = 19755767808000.

The previous prime is 83759947485367. The next prime is 83759947485437. The reversal of 83759947485390 is 9358474995738.

83759947485390 is a `hidden beast` number, since 8 + 3 + 7 + 5 + 9 + 9 + 4 + 74 + 8 + 539 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1230770604 + ... + 1230838656.

It is an arithmetic number, because the mean of its divisors is an integer number (1270861594821).

Almost surely, 283759947485390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83759947485390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122002713102816).

83759947485390 is an abundant number, since it is smaller than the sum of its proper divisors (160245478720242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83759947485390 is a wasteful number, since it uses less digits than its factorization.

83759947485390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101715 (or 101712 counting only the distinct ones).

The product of its (nonzero) digits is 8230118400, while the sum is 81.

The spelling of 83759947485390 in words is "eighty-three trillion, seven hundred fifty-nine billion, nine hundred forty-seven million, four hundred eighty-five thousand, three hundred ninety".