Base | Representation |
---|---|
bin | 10010101000011010… |
… | …010111001001000000 |
3 | 1220122012121011210222 |
4 | 102220122113021000 |
5 | 311432332231000 |
6 | 13105040042212 |
7 | 1305515454254 |
oct | 225032271100 |
9 | 56565534728 |
10 | 20005352000 |
11 | 8536555067 |
12 | 3a63903368 |
13 | 1b6a82c9ba |
14 | d7acba264 |
15 | 7c1476a85 |
hex | 4a8697240 |
20005352000 has 56 divisors (see below), whose sum is σ = 49543274040. Its totient is φ = 8002137600.
The previous prime is 20005351901. The next prime is 20005352053. The reversal of 20005352000 is 25350002.
It can be written as a sum of positive squares in 4 ways, for example, as 1589776384 + 18415575616 = 39872^2 + 135704^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 20005352000.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242335 + ... + 1258334.
Almost surely, 220005352000 is an apocalyptic number.
20005352000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20005352000 is an abundant number, since it is smaller than the sum of its proper divisors (29537922040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20005352000 is an equidigital number, since it uses as much as digits as its factorization.
20005352000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2500696 (or 2500676 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 17.
The spelling of 20005352000 in words is "twenty billion, five million, three hundred fifty-two thousand".
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