Base | Representation |
---|---|
bin | 1011111101001000010… |
… | …0011101101011011110 |
3 | 201122010211110202001200 |
4 | 2333102010131223132 |
5 | 11331113242122124 |
6 | 234204234220330 |
7 | 20560462622610 |
oct | 2772204355336 |
9 | 648124422050 |
10 | 205387848414 |
11 | 7a1170a4491 |
12 | 3397bb846a6 |
13 | 164a2626368 |
14 | 9d258a2db0 |
15 | 552148dbc9 |
hex | 2fd211dade |
205387848414 has 192 divisors, whose sum is σ = 546641851392. Its totient is φ = 54400896000.
The previous prime is 205387848389. The next prime is 205387848437. The reversal of 205387848414 is 414848783502.
205387848414 is a `hidden beast` number, since 20 + 53 + 87 + 8 + 484 + 14 = 666.
It is a super-2 number, since 2×2053878484142 (a number of 23 digits) contains 22 as substring.
It is a congruent 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, 41481639 + ... + 41486589.
It is an arithmetic number, because the mean of its divisors is an integer number (2847092976).
Almost surely, 2205387848414 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 205387848414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273320925696).
205387848414 is an abundant number, since it is smaller than the sum of its proper divisors (341254002978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
205387848414 is a wasteful number, since it uses less digits than its factorization.
205387848414 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5271 (or 5268 counting only the distinct ones).
The product of its (nonzero) digits is 6881280, while the sum is 54.
The spelling of 205387848414 in words is "two hundred five billion, three hundred eighty-seven million, eight hundred forty-eight thousand, four hundred fourteen".
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