Base | Representation |
---|---|
bin | 11100001000110110… |
… | …010000100010010111 |
3 | 2212222121111012200101 |
4 | 130020312100202113 |
5 | 443334040243221 |
6 | 21514005554531 |
7 | 2116466032042 |
oct | 341066204227 |
9 | 85877435611 |
10 | 30213212311 |
11 | 118a4630657 |
12 | 5a32415a47 |
13 | 2b065c7129 |
14 | 16688a9c59 |
15 | bbc6e2d91 |
hex | 708d90897 |
30213212311 has 16 divisors (see below), whose sum is σ = 33825254400. Its totient is φ = 26818466688.
The previous prime is 30213212299. The next prime is 30213212317. The reversal of 30213212311 is 11321231203.
It is not a de Polignac number, because 30213212311 - 215 = 30213179543 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30213212317) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137701 + ... + 281758.
It is an arithmetic number, because the mean of its divisors is an integer number (2114078400).
Almost surely, 230213212311 is an apocalyptic number.
30213212311 is a deficient number, since it is larger than the sum of its proper divisors (3612042089).
30213212311 is a wasteful number, since it uses less digits than its factorization.
30213212311 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 419718.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 30213212311 its reverse (11321231203), we get a palindrome (41534443514).
The spelling of 30213212311 in words is "thirty billion, two hundred thirteen million, two hundred twelve thousand, three hundred eleven".
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