Base | Representation |
---|---|
bin | 11100010110110111… |
… | …000100010000000011 |
3 | 2220120222212011102202 |
4 | 130112313010100003 |
5 | 444324231231110 |
6 | 21553204503415 |
7 | 2125352215652 |
oct | 342667042003 |
9 | 86528764382 |
10 | 30448305155 |
11 | 11a05302364 |
12 | 5a990aab6b |
13 | 2b4321a518 |
14 | 168bbc5199 |
15 | bd31800a5 |
hex | 716dc4403 |
30448305155 has 16 divisors (see below), whose sum is σ = 36945076224. Its totient is φ = 24088687200.
The previous prime is 30448305143. The next prime is 30448305169. The reversal of 30448305155 is 55150384403.
It is a happy number.
It is not a de Polignac number, because 30448305155 - 26 = 30448305091 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77942 + ... + 258788.
It is an arithmetic number, because the mean of its divisors is an integer number (2309067264).
Almost surely, 230448305155 is an apocalyptic number.
30448305155 is a deficient number, since it is larger than the sum of its proper divisors (6496771069).
30448305155 is a wasteful number, since it uses less digits than its factorization.
30448305155 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 181226.
The product of its (nonzero) digits is 144000, while the sum is 38.
Adding to 30448305155 its reverse (55150384403), we get a palindrome (85598689558).
The spelling of 30448305155 in words is "thirty billion, four hundred forty-eight million, three hundred five thousand, one hundred fifty-five".
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