Base | Representation |
---|---|
bin | 10110100101010… |
… | …110001010111000 |
3 | 222101221112211210 |
4 | 112211112022320 |
5 | 1233443421023 |
6 | 101332523120 |
7 | 12250334220 |
oct | 2645261270 |
9 | 871845753 |
10 | 378888888 |
11 | 184966914 |
12 | a6a804a0 |
13 | 6065c511 |
14 | 3846b080 |
15 | 233e3593 |
hex | 169562b8 |
378888888 has 32 divisors (see below), whose sum is σ = 1082540160. Its totient is φ = 108253920.
The previous prime is 378888883. The next prime is 378888901. The reversal of 378888888 is 888888873.
It is a nude number because it is divisible by every one of its digits.
It is a plaindrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (378888883) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127478 + ... + 1127813.
It is an arithmetic number, because the mean of its divisors is an integer number (33829380).
Almost surely, 2378888888 is an apocalyptic number.
It is an amenable number.
378888888 is an abundant number, since it is smaller than the sum of its proper divisors (703651272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
378888888 is a wasteful number, since it uses less digits than its factorization.
378888888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2255307 (or 2255303 counting only the distinct ones).
The product of its digits is 44040192, while the sum is 66.
The square root of 378888888 is about 19465.0684047090. The cubic root of 378888888 is about 723.6089939206.
The spelling of 378888888 in words is "three hundred seventy-eight million, eight hundred eighty-eight thousand, eight hundred eighty-eight".
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