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83123851427708 = 227138324165317483
BaseRepresentation
bin10010111001100111000111…
…101000101111111101111100
3101220022120012010102201011012
4102321213013220233331330
541343400121431141313
6452442323054014352
723336333346131150
oct2271470750577574
9356276163381135
1083123851427708
112453869a107643
1293a5b617a73b8
13374c71277ba90
141675304511060
1599239730bda8
hex4b99c7a2ff7c

83123851427708 has 192 divisors, whose sum is σ = 182233938281472. Its totient is φ = 32301768314880.

The previous prime is 83123851427693. The next prime is 83123851427717. The reversal of 83123851427708 is 80772415832138.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4754544335 + ... + 4754561817.

It is an arithmetic number, because the mean of its divisors is an integer number (949135095216).

Almost surely, 283123851427708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83123851427708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91116969140736).

83123851427708 is an abundant number, since it is smaller than the sum of its proper divisors (99110086853764).

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

83123851427708 is a wasteful number, since it uses less digits than its factorization.

83123851427708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18484 (or 18482 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 83123851427708 in words is "eighty-three trillion, one hundred twenty-three billion, eight hundred fifty-one million, four hundred twenty-seven thousand, seven hundred eight".