Base | Representation |
---|---|
bin | 10011101011100110… |
… | …000110010100100110 |
3 | 2000112202112100100202 |
4 | 103223212012110212 |
5 | 321234410033220 |
6 | 13412542510502 |
7 | 1345453206623 |
oct | 235346062446 |
9 | 60482470322 |
10 | 21132502310 |
11 | 8a64823847 |
12 | 4119295432 |
13 | 1cba1c854a |
14 | 104688534a |
15 | 83a3c2275 |
hex | 4eb986526 |
21132502310 has 32 divisors (see below), whose sum is σ = 38288339712. Its totient is φ = 8397541600.
The previous prime is 21132502283. The next prime is 21132502319. The reversal of 21132502310 is 1320523112.
It is a super-2 number, since 2×211325023102 (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 (21132502319) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4745585 + ... + 4750035.
It is an arithmetic number, because the mean of its divisors is an integer number (1196510616).
Almost surely, 221132502310 is an apocalyptic number.
21132502310 is a deficient number, since it is larger than the sum of its proper divisors (17155837402).
21132502310 is a wasteful number, since it uses less digits than its factorization.
21132502310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7468.
The product of its (nonzero) digits is 360, while the sum is 20.
The spelling of 21132502310 in words is "twenty-one billion, one hundred thirty-two million, five hundred two thousand, three hundred ten".
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