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9983406888 = 23327136124979
BaseRepresentation
bin10010100110000111…
…01011001100101000
3221202202112121122200
421103003223030220
5130421223010023
64330351020200
7502253362350
oct112303531450
927682477580
109983406888
1142634113a4
121b2750a660
13c3142a970
146a9c83b60
153d66d1743
hex2530eb328

9983406888 has 192 divisors, whose sum is σ = 33824918400. Its totient is φ = 2589719040.

The previous prime is 9983406857. The next prime is 9983406899. The reversal of 9983406888 is 8886043899.

It is a Cunningham number, because it is equal to 999172-1.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 387183 + ... + 412161.

It is an arithmetic number, because the mean of its divisors is an integer number (176171450).

Almost surely, 29983406888 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 9983406888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16912459200).

9983406888 is an abundant number, since it is smaller than the sum of its proper divisors (23841511512).

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

9983406888 is a wasteful number, since it uses less digits than its factorization.

9983406888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25072 (or 25065 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The square root of 9983406888 is about 99916.9999949958. Note that the first 5 decimals coincide. The cubic root of 9983406888 is about 2153.2424044606.

The spelling of 9983406888 in words is "nine billion, nine hundred eighty-three million, four hundred six thousand, eight hundred eighty-eight".