Base | Representation |
---|---|
bin | 100110110011… |
… | …1001101100101 |
3 | 1102021200001111 |
4 | 1031213031211 |
5 | 20202030301 |
6 | 2004025021 |
7 | 334635625 |
oct | 115471545 |
9 | 42250044 |
10 | 20345701 |
11 | 10537032 |
12 | 6992171 |
13 | 42a489c |
14 | 29b8885 |
15 | 1bbd551 |
hex | 1367365 |
20345701 has 4 divisors (see below), whose sum is σ = 20406412. Its totient is φ = 20284992.
The previous prime is 20345687. The next prime is 20345723. The reversal of 20345701 is 10754302.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 9156676 + 11189025 = 3026^2 + 3345^2 .
It is a cyclic number.
It is not a de Polignac number, because 20345701 - 25 = 20345669 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20345761) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29850 + ... + 30523.
It is an arithmetic number, because the mean of its divisors is an integer number (5101603).
Almost surely, 220345701 is an apocalyptic number.
It is an amenable number.
20345701 is a deficient number, since it is larger than the sum of its proper divisors (60711).
20345701 is an equidigital number, since it uses as much as digits as its factorization.
20345701 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60710.
The product of its (nonzero) digits is 840, while the sum is 22.
The square root of 20345701 is about 4510.6209106951. The cubic root of 20345701 is about 272.9967976296.
The spelling of 20345701 in words is "twenty million, three hundred forty-five thousand, seven hundred one".
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