Base | Representation |
---|---|
bin | 100100010111110… |
… | …1110010101110010 |
3 | 10011001112022021102 |
4 | 1020233232111302 |
5 | 4444420021010 |
6 | 321034524402 |
7 | 42146552645 |
oct | 11057562562 |
9 | 3131468242 |
10 | 1220470130 |
11 | 576a18300 |
12 | 2a0896702 |
13 | 165b10899 |
14 | b813ba5c |
15 | 72230ba5 |
hex | 48bee572 |
1220470130 has 48 divisors (see below), whose sum is σ = 2541853440. Its totient is φ = 420441120.
The previous prime is 1220470129. The next prime is 1220470177. The reversal of 1220470130 is 310740221.
It is a Curzon number.
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 23 ways as a sum of consecutive naturals, for example, 3554 + ... + 49533.
It is an arithmetic number, because the mean of its divisors is an integer number (52955280).
Almost surely, 21220470130 is an apocalyptic number.
1220470130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1220470130 is an abundant number, since it is smaller than the sum of its proper divisors (1321383310).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220470130 is a wasteful number, since it uses less digits than its factorization.
1220470130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53135 (or 53124 counting only the distinct ones).
The product of its (nonzero) digits is 336, while the sum is 20.
The square root of 1220470130 is about 34935.2276362986. The cubic root of 1220470130 is about 1068.6669660420. Note that the first 3 decimals are identical.
The spelling of 1220470130 in words is "one billion, two hundred twenty million, four hundred seventy thousand, one hundred thirty".
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