Base | Representation |
---|---|
bin | 10001110000011111100… |
… | …111000000001001011010 |
3 | 11022122210212200021201122 |
4 | 101300133213000021122 |
5 | 124443134030424403 |
6 | 2332333142045242 |
7 | 154110124416242 |
oct | 21603747001132 |
9 | 4278725607648 |
10 | 1220301029978 |
11 | 430588133418 |
12 | 178604419822 |
13 | 8b0c6461194 |
14 | 430c47b0b22 |
15 | 21b220ba838 |
hex | 11c1f9c025a |
1220301029978 has 16 divisors (see below), whose sum is σ = 1848460578624. Its totient is φ = 604167888480.
The previous prime is 1220301029963. The next prime is 1220301029989. The reversal of 1220301029978 is 8799201030221.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4976150 + ... + 5215617.
It is an arithmetic number, because the mean of its divisors is an integer number (115528786164).
Almost surely, 21220301029978 is an apocalyptic number.
1220301029978 is a deficient number, since it is larger than the sum of its proper divisors (628159548646).
1220301029978 is a wasteful number, since it uses less digits than its factorization.
1220301029978 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10192357.
The product of its (nonzero) digits is 108864, while the sum is 44.
The spelling of 1220301029978 in words is "one trillion, two hundred twenty billion, three hundred one million, twenty-nine thousand, nine hundred seventy-eight".
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