Base | Representation |
---|---|
bin | 10011110111100001… |
… | …001011111001001101 |
3 | 2001001200221100212022 |
4 | 103313201023321031 |
5 | 322142112303010 |
6 | 13444450215525 |
7 | 1353432415046 |
oct | 236741137115 |
9 | 61050840768 |
10 | 21332541005 |
11 | 9057732886 |
12 | 41742845a5 |
13 | 201c797339 |
14 | 10652778cd |
15 | 84cc37d55 |
hex | 4f784be4d |
21332541005 has 8 divisors (see below), whose sum is σ = 25609832952. Its totient is φ = 17058843648.
The previous prime is 21332540959. The next prime is 21332541011. The reversal of 21332541005 is 50014523312.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 5439652516 + 15892888489 = 73754^2 + 126067^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 21332541005 - 216 = 21332475469 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885572 + ... + 909341.
It is an arithmetic number, because the mean of its divisors is an integer number (3201229119).
Almost surely, 221332541005 is an apocalyptic number.
It is an amenable number.
21332541005 is a deficient number, since it is larger than the sum of its proper divisors (4277291947).
21332541005 is a wasteful number, since it uses less digits than its factorization.
21332541005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1797295.
The product of its (nonzero) digits is 3600, while the sum is 26.
The spelling of 21332541005 in words is "twenty-one billion, three hundred thirty-two million, five hundred forty-one thousand, five".
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