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20136201 = 323291829
BaseRepresentation
bin100110011010…
…0000100001001
31101220000200020
41030310010021
520123324301
61555331053
7333104061
oct114640411
941800606
1020136201
1110403698
1268b0a89
134230417
1429623a1
151b7b436
hex1334109

20136201 has 8 divisors (see below), whose sum is σ = 28015680. Its totient is φ = 12840432.

The previous prime is 20136197. The next prime is 20136217. The reversal of 20136201 is 10263102.

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

It is not a de Polignac number, because 20136201 - 22 = 20136197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20136241) 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, 145846 + ... + 145983.

It is an arithmetic number, because the mean of its divisors is an integer number (3501960).

Almost surely, 220136201 is an apocalyptic number.

It is an amenable number.

20136201 is a deficient number, since it is larger than the sum of its proper divisors (7879479).

20136201 is a wasteful number, since it uses less digits than its factorization.

20136201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291855.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 20136201 is about 4487.3378522237. The cubic root of 20136201 is about 272.0565455177.

Adding to 20136201 its reverse (10263102), we get a palindrome (30399303).

The spelling of 20136201 in words is "twenty million, one hundred thirty-six thousand, two hundred one".

Divisors: 1 3 23 69 291829 875487 6712067 20136201