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99243756810 = 232511317094561
BaseRepresentation
bin101110001101101100…
…0111000110100001010
3100111011110122012121200
41130123120320310022
53111222400204220
6113331510045030
710112232004602
oct1343330706412
9314143565550
1099243756810
11390a8571430
1217298649776
139487c3a373
144b36845c02
1528acb57890
hex171b638d0a

99243756810 has 192 divisors, whose sum is σ = 291045381120. Its totient is φ = 23245056000.

The previous prime is 99243756809. The next prime is 99243756851. The reversal of 99243756810 is 1865734299.

It is a super-2 number, since 2×992437568102 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21756930 + ... + 21761490.

It is an arithmetic number, because the mean of its divisors is an integer number (1515861360).

It is a 2-persistent number, because it is pandigital, and so is 2⋅99243756810 = 198487513620, but 3⋅99243756810 = 297731270430 is not.

Almost surely, 299243756810 is an apocalyptic number.

99243756810 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 99243756810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145522690560).

99243756810 is an abundant number, since it is smaller than the sum of its proper divisors (191801624310).

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

99243756810 is a wasteful number, since it uses less digits than its factorization.

With its successor (99243756811) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (5322).

99243756810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325 (or 5322 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 99243756810 in words is "ninety-nine billion, two hundred forty-three million, seven hundred fifty-six thousand, eight hundred ten".