Base | Representation |
---|---|
bin | 101001000110001… |
… | …0100001100101000 |
3 | 10120002202102201211 |
4 | 1102030110030220 |
5 | 10311003211133 |
6 | 344455522504 |
7 | 46112653015 |
oct | 12214241450 |
9 | 3502672654 |
10 | 1378960168 |
11 | 648429203 |
12 | 325989434 |
13 | 18c8c2c81 |
14 | d11d670c |
15 | 810dabcd |
hex | 52314328 |
1378960168 has 32 divisors (see below), whose sum is σ = 2772316800. Its totient is φ = 640703232.
The previous prime is 1378960159. The next prime is 1378960223. The reversal of 1378960168 is 8610698731.
It is a super-2 number, since 2×13789601682 = 3803062289861176448, which contains 22 as substring.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 53430 + ... + 74917.
It is an arithmetic number, because the mean of its divisors is an integer number (86634900).
Almost surely, 21378960168 is an apocalyptic number.
It is an amenable number.
1378960168 is an abundant number, since it is smaller than the sum of its proper divisors (1393356632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1378960168 is a wasteful number, since it uses less digits than its factorization.
1378960168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 128449 (or 128445 counting only the distinct ones).
The product of its (nonzero) digits is 435456, while the sum is 49.
The square root of 1378960168 is about 37134.3529363311. The cubic root of 1378960168 is about 1113.0565777562.
The spelling of 1378960168 in words is "one billion, three hundred seventy-eight million, nine hundred sixty thousand, one hundred sixty-eight".
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