Base | Representation |
---|---|
bin | 11100000011010010… |
… | …101011111010111010 |
3 | 2212202010002121002101 |
4 | 130003102223322322 |
5 | 443141210014320 |
6 | 21500440054014 |
7 | 2114254533415 |
oct | 340322537272 |
9 | 85663077071 |
10 | 30120001210 |
11 | 11856a56792 |
12 | 5a0716430a |
13 | 2ac01bc730 |
14 | 165a364b7c |
15 | bb442ec0a |
hex | 7034abeba |
30120001210 has 128 divisors (see below), whose sum is σ = 61776691200. Its totient is φ = 10490363136.
The previous prime is 30120001207. The next prime is 30120001211. The reversal of 30120001210 is 1210002103.
It is a super-3 number, since 3×301200012103 (a number of 32 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is not an unprimeable number, because it can be changed into a prime (30120001211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132687117 + ... + 132687343.
It is an arithmetic number, because the mean of its divisors is an integer number (482630400).
Almost surely, 230120001210 is an apocalyptic number.
30120001210 is an abundant number, since it is smaller than the sum of its proper divisors (31656689990).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30120001210 is a wasteful number, since it uses less digits than its factorization.
30120001210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 692.
The product of its (nonzero) digits is 12, while the sum is 10.
Adding to 30120001210 its reverse (1210002103), we get a palindrome (31330003313).
The spelling of 30120001210 in words is "thirty billion, one hundred twenty million, one thousand, two hundred ten".
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