Base | Representation |
---|---|
bin | 10001100111000110010… |
… | …100010011011000101110 |
3 | 11021200202211022100022000 |
4 | 101213012110103120232 |
5 | 124312004013134410 |
6 | 2323544133033130 |
7 | 153302130644103 |
oct | 21470624233056 |
9 | 4250684270260 |
10 | 1210213021230 |
11 | 427280778104 |
12 | 176669a857a6 |
13 | 8a17946b235 |
14 | 42808a9caaa |
15 | 21731625dc0 |
hex | 119c651362e |
1210213021230 has 64 divisors (see below), whose sum is σ = 3397089196800. Its totient is φ = 305738025120.
The previous prime is 1210213021229. The next prime is 1210213021247. The reversal of 1210213021230 is 321203120121.
1210213021230 is a `hidden beast` number, since 1 + 210 + 213 + 0 + 212 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 117949356 + ... + 117959615.
It is an arithmetic number, because the mean of its divisors is an integer number (53079518700).
Almost surely, 21210213021230 is an apocalyptic number.
1210213021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1210213021230 is an abundant number, since it is smaller than the sum of its proper divisors (2186876175570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210213021230 is a wasteful number, since it uses less digits than its factorization.
1210213021230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 235909006 (or 235909000 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 1210213021230 its reverse (321203120121), we get a palindrome (1531416141351).
The spelling of 1210213021230 in words is "one trillion, two hundred ten billion, two hundred thirteen million, twenty-one thousand, two hundred thirty".
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