Base | Representation |
---|---|
bin | 10011111100001001… |
… | …100011011110010010 |
3 | 2001021010010111011100 |
4 | 103330021203132102 |
5 | 322322004412320 |
6 | 13500303325230 |
7 | 1355364654033 |
oct | 237411433622 |
9 | 61233114140 |
10 | 21410232210 |
11 | 9097577394 |
12 | 41962b0816 |
13 | 20328c9873 |
14 | 10716dca8a |
15 | 854982790 |
hex | 4fc263792 |
21410232210 has 24 divisors (see below), whose sum is σ = 55666603980. Its totient is φ = 5709395232.
The previous prime is 21410232199. The next prime is 21410232227. The reversal of 21410232210 is 1223201412.
It is a happy number.
21410232210 is a `hidden beast` number, since 2 + 1 + 410 + 232 + 21 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 19942805961 + 1467426249 = 141219^2 + 38307^2 .
It is a super-2 number, since 2×214102322102 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118945645 + ... + 118945824.
Almost surely, 221410232210 is an apocalyptic number.
21410232210 is an abundant number, since it is smaller than the sum of its proper divisors (34256371770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21410232210 is a wasteful number, since it uses less digits than its factorization.
21410232210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 237891482 (or 237891479 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 21410232210 its reverse (1223201412), we get a palindrome (22633433622).
The spelling of 21410232210 in words is "twenty-one billion, four hundred ten million, two hundred thirty-two thousand, two hundred ten".
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