Base | Representation |
---|---|
bin | 100110010001… |
… | …0110000100000 |
3 | 1101202102102201 |
4 | 1030202300200 |
5 | 20114042222 |
6 | 1554022544 |
7 | 332360311 |
oct | 114426040 |
9 | 41672381 |
10 | 20065312 |
11 | 10365403 |
12 | 6877a54 |
13 | 4207087 |
14 | 2944608 |
15 | 1b65427 |
hex | 1322c20 |
20065312 has 12 divisors (see below), whose sum is σ = 39503646. Its totient is φ = 10032640.
The previous prime is 20065307. The next prime is 20065313. The reversal of 20065312 is 21356002.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 12645136 + 7420176 = 3556^2 + 2724^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 20065312.
It is not an unprimeable number, because it can be changed into a prime (20065313) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313489 + ... + 313552.
Almost surely, 220065312 is an apocalyptic number.
It is an amenable number.
20065312 is a deficient number, since it is larger than the sum of its proper divisors (19438334).
20065312 is an equidigital number, since it uses as much as digits as its factorization.
20065312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 627051 (or 627043 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 20065312 is about 4479.4321068635. The cubic root of 20065312 is about 271.7369140147.
The spelling of 20065312 in words is "twenty million, sixty-five thousand, three hundred twelve".
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