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216285513080 = 2357131723151967
BaseRepresentation
bin1100100101101110011…
…1110000010101111000
3202200021022100110121112
43021123213300111320
512020423042404310
6243205445055452
721424520345660
oct3113347602570
9680238313545
10216285513080
11837a959621a
1235b016b7588
131751b2a0250
14a67ad351a0
15595d066705
hex325b9f0578

216285513080 has 256 divisors, whose sum is σ = 661753774080. Its totient is φ = 61622820864.

The previous prime is 216285513049. The next prime is 216285513107. The reversal of 216285513080 is 80315582612.

216285513080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1347257 + ... + 1499223.

It is an arithmetic number, because the mean of its divisors is an integer number (2584975680).

Almost surely, 2216285513080 is an apocalyptic number.

216285513080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216285513080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330876887040).

216285513080 is an abundant number, since it is smaller than the sum of its proper divisors (445468261000).

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

216285513080 is a wasteful number, since it uses less digits than its factorization.

216285513080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152038 (or 152034 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 216285513080 in words is "two hundred sixteen billion, two hundred eighty-five million, five hundred thirteen thousand, eighty".