Base | Representation |
---|---|
bin | 11100000000011110… |
… | …000010101000111101 |
3 | 2212121210222201020022 |
4 | 130000132002220331 |
5 | 443042044134310 |
6 | 21452025101525 |
7 | 2113141163240 |
oct | 340036025075 |
9 | 85553881208 |
10 | 30072646205 |
11 | 11832252218 |
12 | 59b33278a5 |
13 | 2ab344c214 |
14 | 1653d59257 |
15 | bb01c8a55 |
hex | 700782a3d |
30072646205 has 8 divisors (see below), whose sum is σ = 41242486272. Its totient is φ = 20621243088.
The previous prime is 30072646193. The next prime is 30072646249. The reversal of 30072646205 is 50264627003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30072646205 - 224 = 30055868989 is a prime.
It is a super-2 number, since 2×300726462052 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 859218463 = 30072646205 / (3 + 0 + 0 + 7 + 2 + 6 + 4 + 6 + 2 + 0 + 5).
It is a Duffinian number.
It is a congruent 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, 429609197 + ... + 429609266.
It is an arithmetic number, because the mean of its divisors is an integer number (5155310784).
Almost surely, 230072646205 is an apocalyptic number.
30072646205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30072646205 is a deficient number, since it is larger than the sum of its proper divisors (11169840067).
30072646205 is an equidigital number, since it uses as much as digits as its factorization.
30072646205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 859218475.
The product of its (nonzero) digits is 60480, while the sum is 35.
The spelling of 30072646205 in words is "thirty billion, seventy-two million, six hundred forty-six thousand, two hundred five".
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