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20145301 = 1119113853
BaseRepresentation
bin100110011011…
…0010010010101
31101220111011021
41030312102111
520124122201
61555441141
7333142441
oct114662225
941814137
1020145301
111040a510
1268b61b1
1342345c7
142965821
151b7dea1
hex1336495

20145301 has 16 divisors (see below), whose sum is σ = 23365440. Its totient is φ = 17176320.

The previous prime is 20145277. The next prime is 20145313. The reversal of 20145301 is 10354102.

It is a cyclic number.

It is not a de Polignac number, because 20145301 - 25 = 20145269 is a prime.

It is a super-4 number, since 4×201453014 (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20145341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23191 + ... + 24043.

It is an arithmetic number, because the mean of its divisors is an integer number (1460340).

Almost surely, 220145301 is an apocalyptic number.

It is an amenable number.

20145301 is a deficient number, since it is larger than the sum of its proper divisors (3220139).

20145301 is a wasteful number, since it uses less digits than its factorization.

20145301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20145301 is about 4488.3517019057. The cubic root of 20145301 is about 272.0975221600.

Adding to 20145301 its reverse (10354102), we get a palindrome (30499403).

The spelling of 20145301 in words is "twenty million, one hundred forty-five thousand, three hundred one".

Divisors: 1 11 19 113 209 853 1243 2147 9383 16207 23617 96389 178277 1060279 1831391 20145301