Base | Representation |
---|---|
bin | 100100101011000… |
… | …0010000001010010 |
3 | 10011202102111102022 |
4 | 1021112002001102 |
5 | 10010002342320 |
6 | 322034051442 |
7 | 42331116104 |
oct | 11126020122 |
9 | 3152374368 |
10 | 1230512210 |
11 | 581657044 |
12 | 2a4119b82 |
13 | 167c18645 |
14 | b95d3574 |
15 | 73066325 |
hex | 49582052 |
1230512210 has 32 divisors (see below), whose sum is σ = 2232567792. Its totient is φ = 488298240.
The previous prime is 1230512197. The next prime is 1230512249. The reversal of 1230512210 is 122150321.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 11175649 + 1219336561 = 3343^2 + 34919^2 .
It is a Curzon 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, 1442144 + ... + 1442996.
Almost surely, 21230512210 is an apocalyptic number.
1230512210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1230512210 is a deficient number, since it is larger than the sum of its proper divisors (1002055582).
1230512210 is a wasteful number, since it uses less digits than its factorization.
1230512210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1838.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 1230512210 is about 35078.6574714598. The cubic root of 1230512210 is about 1071.5899761327.
Adding to 1230512210 its reverse (122150321), we get a palindrome (1352662531).
The spelling of 1230512210 in words is "one billion, two hundred thirty million, five hundred twelve thousand, two hundred ten".
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