Base | Representation |
---|---|
bin | 10010101100100101… |
… | …111010011100000001 |
3 | 1220211002120111201120 |
4 | 102230211322130001 |
5 | 312103311122100 |
6 | 13120023222453 |
7 | 1310326561344 |
oct | 225445723401 |
9 | 56732514646 |
10 | 20075489025 |
11 | 85720aa049 |
12 | 3a832a7a29 |
13 | 1b7c2189b7 |
14 | d8633645b |
15 | 7c76cd0a0 |
hex | 4ac97a701 |
20075489025 has 24 divisors (see below), whose sum is σ = 33195610464. Its totient is φ = 10705593600.
The previous prime is 20075489017. The next prime is 20075489041. The reversal of 20075489025 is 52098457002.
It is not a de Polignac number, because 20075489025 - 23 = 20075489017 is a prime.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 999330 + ... + 1019220.
It is an arithmetic number, because the mean of its divisors is an integer number (1383150436).
Almost surely, 220075489025 is an apocalyptic number.
20075489025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20075489025 is a deficient number, since it is larger than the sum of its proper divisors (13120121439).
20075489025 is a wasteful number, since it uses less digits than its factorization.
20075489025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33361 (or 33356 counting only the distinct ones).
The product of its (nonzero) digits is 201600, while the sum is 42.
The spelling of 20075489025 in words is "twenty billion, seventy-five million, four hundred eighty-nine thousand, twenty-five".
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