Base | Representation |
---|---|
bin | 10110100011011… |
… | …010000011111100 |
3 | 222100222201112002 |
4 | 112203122003330 |
5 | 1233331134130 |
6 | 101314001432 |
7 | 12243116156 |
oct | 2643320374 |
9 | 870881462 |
10 | 378380540 |
11 | 18464999a |
12 | a6876278 |
13 | 60512015 |
14 | 38377ad6 |
15 | 23342b45 |
hex | 168da0fc |
378380540 has 12 divisors (see below), whose sum is σ = 794599176. Its totient is φ = 151352208.
The previous prime is 378380501. The next prime is 378380549. The reversal of 378380540 is 45083873.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 378380494 and 378380503.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (378380549) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9459494 + ... + 9459533.
It is an arithmetic number, because the mean of its divisors is an integer number (66216598).
Almost surely, 2378380540 is an apocalyptic number.
It is an amenable number.
378380540 is an abundant number, since it is smaller than the sum of its proper divisors (416218636).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
378380540 is a wasteful number, since it uses less digits than its factorization.
378380540 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18919036 (or 18919034 counting only the distinct ones).
The product of its (nonzero) digits is 80640, while the sum is 38.
The square root of 378380540 is about 19452.0060662133. The cubic root of 378380540 is about 723.2852316167.
The spelling of 378380540 in words is "three hundred seventy-eight million, three hundred eighty thousand, five hundred forty".
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