Base | Representation |
---|---|
bin | 10011100101011111… |
… | …100101101001010110 |
3 | 2000021121220102010021 |
4 | 103211133211221112 |
5 | 321032203213220 |
6 | 13354444415354 |
7 | 1343101114045 |
oct | 234537455126 |
9 | 60247812107 |
10 | 21030132310 |
11 | 8a11a63740 |
12 | 40aab4755a |
13 | 1ca1c35095 |
14 | 103703855c |
15 | 8314004aa |
hex | 4e57e5a56 |
21030132310 has 16 divisors (see below), whose sum is σ = 41295532752. Its totient is φ = 7647320800.
The previous prime is 21030132293. The next prime is 21030132313. The reversal of 21030132310 is 1323103012.
It is a super-2 number, since 2×210301323102 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21030132313) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95591401 + ... + 95591620.
It is an arithmetic number, because the mean of its divisors is an integer number (2580970797).
Almost surely, 221030132310 is an apocalyptic number.
21030132310 is a deficient number, since it is larger than the sum of its proper divisors (20265400442).
21030132310 is a wasteful number, since it uses less digits than its factorization.
21030132310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 191183039.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 21030132310 its reverse (1323103012), we get a palindrome (22353235322).
The spelling of 21030132310 in words is "twenty-one billion, thirty million, one hundred thirty-two thousand, three hundred ten".
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