Base | Representation |
---|---|
bin | 10011010100111011… |
… | …111110100001110100 |
3 | 1222120021020012022202 |
4 | 103110323332201310 |
5 | 320000101032323 |
6 | 13311123044032 |
7 | 1333156106630 |
oct | 232473764164 |
9 | 58507205282 |
10 | 20752361588 |
11 | 888a192462 |
12 | 4031b10618 |
13 | 1c5951b2ca |
14 | 100c1addc0 |
15 | 816d32d28 |
hex | 4d4efe874 |
20752361588 has 12 divisors (see below), whose sum is σ = 41504723232. Its totient is φ = 8893869240.
The previous prime is 20752361423. The next prime is 20752361611. The reversal of 20752361588 is 88516325702.
20752361588 is an admirable number.
It is a super-2 number, since 2×207523615882 (a number of 21 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370577858 + ... + 370577913.
It is an arithmetic number, because the mean of its divisors is an integer number (3458726936).
Almost surely, 220752361588 is an apocalyptic number.
20752361588 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
20752361588 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20752361588 is a wasteful number, since it uses less digits than its factorization.
20752361588 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 741155782 (or 741155780 counting only the distinct ones).
The product of its (nonzero) digits is 806400, while the sum is 47.
The spelling of 20752361588 in words is "twenty billion, seven hundred fifty-two million, three hundred sixty-one thousand, five hundred eighty-eight".
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