Base | Representation |
---|---|
bin | 1011010001011111000… |
… | …01100011010001000000 |
3 | 1101000210200210022102220 |
4 | 11220233201203101000 |
5 | 22321240130142432 |
6 | 453535450211040 |
7 | 36661516625412 |
oct | 5505741432100 |
9 | 1330720708386 |
10 | 387344380992 |
11 | 13a2a9894538 |
12 | 630a0a23a80 |
13 | 2a6ac70609a |
14 | 14a674809b2 |
15 | a12082072c |
hex | 5a2f863440 |
387344380992 has 336 divisors, whose sum is σ = 1121439545280. Its totient is φ = 117661040640.
The previous prime is 387344380933. The next prime is 387344380999. The reversal of 387344380992 is 299083443783.
It is not an unprimeable number, because it can be changed into a prime (387344380999) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1097292688 + ... + 1097293040.
Almost surely, 2387344380992 is an apocalyptic number.
387344380992 is a gapful number since it is divisible by the number (32) 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 387344380992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560719772640).
387344380992 is an abundant number, since it is smaller than the sum of its proper divisors (734095164288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387344380992 is a wasteful number, since it uses less digits than its factorization.
387344380992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 762 (or 721 counting only the distinct ones).
The product of its (nonzero) digits is 31352832, while the sum is 60.
The spelling of 387344380992 in words is "three hundred eighty-seven billion, three hundred forty-four million, three hundred eighty thousand, nine hundred ninety-two".
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