Base | Representation |
---|---|
bin | 100110010001… |
… | …1011111111001 |
3 | 1101202120121001 |
4 | 1030203133321 |
5 | 20114141340 |
6 | 1554045001 |
7 | 332402203 |
oct | 114433771 |
9 | 41676531 |
10 | 20068345 |
11 | 10367710 |
12 | 6879761 |
13 | 420857b |
14 | 2945773 |
15 | 1b6629a |
hex | 13237f9 |
20068345 has 8 divisors (see below), whose sum is σ = 26271360. Its totient is φ = 14595120.
The previous prime is 20068339. The next prime is 20068361. The reversal of 20068345 is 54386002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20068345 - 29 = 20067833 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182385 + ... + 182494.
It is an arithmetic number, because the mean of its divisors is an integer number (3283920).
Almost surely, 220068345 is an apocalyptic number.
It is an amenable number.
20068345 is a deficient number, since it is larger than the sum of its proper divisors (6203015).
20068345 is a wasteful number, since it uses less digits than its factorization.
20068345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 364895.
The product of its (nonzero) digits is 5760, while the sum is 28.
The square root of 20068345 is about 4479.7706414503. The cubic root of 20068345 is about 271.7506049147.
The spelling of 20068345 in words is "twenty million, sixty-eight thousand, three hundred forty-five".
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