Base | Representation |
---|---|
bin | 10111000100010… |
… | …111001000100000 |
3 | 222222020121200000 |
4 | 113010113020200 |
5 | 1243034104141 |
6 | 102223100000 |
7 | 12406416066 |
oct | 2704271040 |
9 | 888217600 |
10 | 387019296 |
11 | 18950a364 |
12 | a9741600 |
13 | 62248101 |
14 | 39586036 |
15 | 23e9c5b6 |
hex | 17117220 |
387019296 has 144 divisors (see below), whose sum is σ = 1159075008. Its totient is φ = 127008000.
The previous prime is 387019273. The next prime is 387019309. The reversal of 387019296 is 692910783.
It is a tau number, because it is divible by the number of its divisors (144).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551746 + ... + 552446.
It is an arithmetic number, because the mean of its divisors is an integer number (8049132).
Almost surely, 2387019296 is an apocalyptic number.
387019296 is a gapful number since it is divisible by the number (36) 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 387019296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579537504).
387019296 is an abundant number, since it is smaller than the sum of its proper divisors (772055712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387019296 is an equidigital number, since it uses as much as digits as its factorization.
387019296 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 797 (or 777 counting only the distinct ones).
The product of its (nonzero) digits is 163296, while the sum is 45.
The square root of 387019296 is about 19672.8060021950. The cubic root of 387019296 is about 728.7482746189.
The spelling of 387019296 in words is "three hundred eighty-seven million, nineteen thousand, two hundred ninety-six".
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