Base | Representation |
---|---|
bin | 1001110000111000001110… |
… | …10001000101001110001010 |
3 | 2211000120112110011112022120 |
4 | 10320130013101011032022 |
5 | 10303233404314243200 |
6 | 113355253035232110 |
7 | 4344130024644621 |
oct | 470340721051612 |
9 | 84016473145276 |
10 | 21470663431050 |
11 | 6928725849a19 |
12 | 24a91a98a8636 |
13 | bc98a090c6b2 |
14 | 5432856186b8 |
15 | 27377b9a39a0 |
hex | 13870744538a |
21470663431050 has 96 divisors (see below), whose sum is σ = 54577052005824. Its totient is φ = 5584212480000.
The previous prime is 21470663430959. The next prime is 21470663431069. The reversal of 21470663431050 is 5013436607412.
It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 21470663430993 and 21470663431011.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9561111 + ... + 11591210.
It is an arithmetic number, because the mean of its divisors is an integer number (568510958394).
Almost surely, 221470663431050 is an apocalyptic number.
21470663431050 is an abundant number, since it is smaller than the sum of its proper divisors (33106388574774).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21470663431050 is a wasteful number, since it uses less digits than its factorization.
21470663431050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21152504 (or 21152499 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 42.
The spelling of 21470663431050 in words is "twenty-one trillion, four hundred seventy billion, six hundred sixty-three million, four hundred thirty-one thousand, fifty".
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