Base | Representation |
---|---|
bin | 1110101100000… |
… | …01010011010010 |
3 | 22120211212110211 |
4 | 13112001103102 |
5 | 223020304020 |
6 | 20120514334 |
7 | 3024202414 |
oct | 726012322 |
9 | 276755424 |
10 | 123213010 |
11 | 63606838 |
12 | 3531b9aa |
13 | 1c6b050b |
14 | 125149b4 |
15 | ac3c85a |
hex | 75814d2 |
123213010 has 8 divisors (see below), whose sum is σ = 221783436. Its totient is φ = 49285200.
The previous prime is 123212981. The next prime is 123213011. The reversal of 123213010 is 10312321.
It can be written as a sum of positive squares in 2 ways, for example, as 116877721 + 6335289 = 10811^2 + 2517^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (123213011) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6160641 + ... + 6160660.
Almost surely, 2123213010 is an apocalyptic number.
123213010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
123213010 is a deficient number, since it is larger than the sum of its proper divisors (98570426).
123213010 is a wasteful number, since it uses less digits than its factorization.
123213010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12321308.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 123213010 is about 11100.1355847575. The cubic root of 123213010 is about 497.6059015482.
Adding to 123213010 its reverse (10312321), we get a palindrome (133525331).
The spelling of 123213010 in words is "one hundred twenty-three million, two hundred thirteen thousand, ten".
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