Base | Representation |
---|---|
bin | 1011010011000101101… |
… | …01010001110000000000 |
3 | 1101010000200112221121100 |
4 | 11221202311101300000 |
5 | 22330021012041034 |
6 | 454201120254400 |
7 | 40022041446162 |
oct | 5514265216000 |
9 | 1333020487540 |
10 | 388205190144 |
11 | 13a700789162 |
12 | 632a1171400 |
13 | 2a7b8b5a305 |
14 | 14b09918932 |
15 | a1711aa099 |
hex | 5a62d51c00 |
388205190144 has 264 divisors, whose sum is σ = 1181316363552. Its totient is φ = 122543308800.
The previous prime is 388205190119. The next prime is 388205190169. The reversal of 388205190144 is 441091502883.
It is an interprime number because it is at equal distance from previous prime (388205190119) and next prime (388205190169).
It is a self number, because there is not a number n which added to its sum of digits gives 388205190144.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21399702 + ... + 21417834.
Almost surely, 2388205190144 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 388205190144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590658181776).
388205190144 is an abundant number, since it is smaller than the sum of its proper divisors (793111173408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388205190144 is a wasteful number, since it uses less digits than its factorization.
388205190144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18283 (or 18262 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 45.
The spelling of 388205190144 in words is "three hundred eighty-eight billion, two hundred five million, one hundred ninety thousand, one hundred forty-four".
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