Search a number
-
+
205936990736160 = 253523109571299711
BaseRepresentation
bin101110110100110001110001…
…001011011100111100100000
31000000011101100222010100210010
4232310301301023130330200
5203443032424112024120
62005554051505204520
761243312416033225
oct5664616113347440
91000141328110703
10205936990736160
115a688429560232
121b11bb75630740
138abaa0c5b57b8
1438bd59142594c
1518c1d615007e0
hexbb4c712dcf20

205936990736160 has 384 divisors, whose sum is σ = 684314714603520. Its totient is φ = 51955615641600.

The previous prime is 205936990736131. The next prime is 205936990736177. The reversal of 205936990736160 is 61637099639502.

205936990736160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 205936990736091 and 205936990736100.

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, 686968705 + ... + 687268415.

It is an arithmetic number, because the mean of its divisors is an integer number (1782069569280).

Almost surely, 2205936990736160 is an apocalyptic number.

205936990736160 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 205936990736160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342157357301760).

205936990736160 is an abundant number, since it is smaller than the sum of its proper divisors (478377723867360).

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

205936990736160 is a wasteful number, since it uses less digits than its factorization.

205936990736160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300432 (or 300424 counting only the distinct ones).

The product of its (nonzero) digits is 99202320, while the sum is 66.

The spelling of 205936990736160 in words is "two hundred five trillion, nine hundred thirty-six billion, nine hundred ninety million, seven hundred thirty-six thousand, one hundred sixty".