Base | Representation |
---|---|
bin | 10110101010101… |
… | …111000111010100 |
3 | 222111121022222010 |
4 | 112222233013110 |
5 | 1234324124110 |
6 | 101423104220 |
7 | 12265340355 |
oct | 2652570724 |
9 | 874538863 |
10 | 380301780 |
11 | 1857413a1 |
12 | a7442070 |
13 | 60a35651 |
14 | 38717d2c |
15 | 235c2020 |
hex | 16aaf1d4 |
380301780 has 48 divisors (see below), whose sum is σ = 1111146624. Its totient is φ = 97004160.
The previous prime is 380301751. The next prime is 380301793. The reversal of 380301780 is 87103083.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136411 + ... + 139170.
It is an arithmetic number, because the mean of its divisors is an integer number (23148888).
Almost surely, 2380301780 is an apocalyptic number.
380301780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
380301780 is an abundant number, since it is smaller than the sum of its proper divisors (730844844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380301780 is a wasteful number, since it uses less digits than its factorization.
380301780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 275616 (or 275614 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 30.
The square root of 380301780 is about 19501.3276471116. The cubic root of 380301780 is about 724.5073339383.
The spelling of 380301780 in words is "three hundred eighty million, three hundred one thousand, seven hundred eighty".
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