Base | Representation |
---|---|
bin | 1011000001011111010… |
… | …10000000110101101000 |
3 | 1100012122012111010022210 |
4 | 11200233222000311220 |
5 | 22201143201232210 |
6 | 445555353445120 |
7 | 36235641346542 |
oct | 5405752006550 |
9 | 1305565433283 |
10 | 378756664680 |
11 | 1366a2299129 |
12 | 614a4a107a0 |
13 | 299414a8544 |
14 | 14490b0a692 |
15 | 9cbb931e20 |
hex | 582fa80d68 |
378756664680 has 128 divisors (see below), whose sum is σ = 1162295930880. Its totient is φ = 98695215360.
The previous prime is 378756664673. The next prime is 378756664697. The reversal of 378756664680 is 86466657873.
It is a super-2 number, since 2×3787566646802 (a number of 24 digits) contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3505627 + ... + 3612053.
It is an arithmetic number, because the mean of its divisors is an integer number (9080436960).
Almost surely, 2378756664680 is an apocalyptic number.
378756664680 is a gapful number since it is divisible by the number (30) 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 378756664680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581147965440).
378756664680 is an abundant number, since it is smaller than the sum of its proper divisors (783539266200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
378756664680 is a wasteful number, since it uses less digits than its factorization.
378756664680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 107119 (or 107115 counting only the distinct ones).
The product of its (nonzero) digits is 243855360, while the sum is 66.
The spelling of 378756664680 in words is "three hundred seventy-eight billion, seven hundred fifty-six million, six hundred sixty-four thousand, six hundred eighty".
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