Base | Representation |
---|---|
bin | 10011110101101000… |
… | …111001111101110100 |
3 | 2000222111121102212010 |
4 | 103311220321331310 |
5 | 322111024312132 |
6 | 13441402324220 |
7 | 1352600412552 |
oct | 236550717564 |
9 | 60874542763 |
10 | 21301010292 |
11 | 9040957341 |
12 | 41657b9670 |
13 | 20160a7703 |
14 | 1060dcabd2 |
15 | 84a0aa6cc |
hex | 4f5a39f74 |
21301010292 has 48 divisors (see below), whose sum is σ = 50578000704. Its totient is φ = 6976320000.
The previous prime is 21301010231. The next prime is 21301010293. The reversal of 21301010292 is 29201010312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21301010293) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91692 + ... + 225852.
It is an arithmetic number, because the mean of its divisors is an integer number (1053708348).
Almost surely, 221301010292 is an apocalyptic number.
It is an amenable number.
21301010292 is an abundant number, since it is smaller than the sum of its proper divisors (29276990412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21301010292 is a wasteful number, since it uses less digits than its factorization.
21301010292 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 134400 (or 134398 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 21.
The spelling of 21301010292 in words is "twenty-one billion, three hundred one million, ten thousand, two hundred ninety-two".
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