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20301009 = 317398059
BaseRepresentation
bin100110101110…
…0010011010001
31102012101202020
41031130103101
520144113014
62003042053
7334361421
oct115342321
942171666
1020301009
11105064a3
126970329
13428a441
1429a6481
151bb01a9
hex135c4d1

20301009 has 8 divisors (see below), whose sum is σ = 28660320. Its totient is φ = 12737856.

The previous prime is 20301007. The next prime is 20301037. The reversal of 20301009 is 90010302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20301009 - 21 = 20301007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20301007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198979 + ... + 199080.

It is an arithmetic number, because the mean of its divisors is an integer number (3582540).

Almost surely, 220301009 is an apocalyptic number.

It is an amenable number.

20301009 is a deficient number, since it is larger than the sum of its proper divisors (8359311).

20301009 is a wasteful number, since it uses less digits than its factorization.

20301009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398079.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 20301009 is about 4505.6641019943. The cubic root of 20301009 is about 272.7967600011.

The spelling of 20301009 in words is "twenty million, three hundred one thousand, nine".

Divisors: 1 3 17 51 398059 1194177 6767003 20301009