Base | Representation |
---|---|
bin | 10110110000110… |
… | …000001101000100 |
3 | 222121120110122200 |
4 | 112300300031010 |
5 | 1240230112413 |
6 | 101520554500 |
7 | 12314630112 |
oct | 2660601504 |
9 | 877513580 |
10 | 381879108 |
11 | 186619476 |
12 | a7a82a30 |
13 | 61168590 |
14 | 38a08ab2 |
15 | 237d4573 |
hex | 16c30344 |
381879108 has 72 divisors (see below), whose sum is σ = 1043742336. Its totient is φ = 117028800.
The previous prime is 381879101. The next prime is 381879131. The reversal of 381879108 is 801978183.
It is not an unprimeable number, because it can be changed into a prime (381879101) by changing a digit.
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, 125323 + ... + 128333.
Almost surely, 2381879108 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 381879108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521871168).
381879108 is an abundant number, since it is smaller than the sum of its proper divisors (661863228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
381879108 is a wasteful number, since it uses less digits than its factorization.
381879108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3305 (or 3300 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 45.
The square root of 381879108 is about 19541.7273545611. The cubic root of 381879108 is about 725.5076004519.
The spelling of 381879108 in words is "three hundred eighty-one million, eight hundred seventy-nine thousand, one hundred eight".
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