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20236207 = 71421677
BaseRepresentation
bin100110100110…
…0011110101111
31102002002212011
41031030132233
520140024312
62001422051
7334001455
oct115143657
942062764
1020236207
1110471842
12693a927
134266ab4
14298a9d5
151b9ada7
hex134c7af

20236207 has 8 divisors (see below), whose sum is σ = 20600352. Its totient is φ = 19874400.

The previous prime is 20236199. The next prime is 20236253. The reversal of 20236207 is 70263202.

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

It is a cyclic number.

It is not a de Polignac number, because 20236207 - 23 = 20236199 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 (20236277) 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, 29553 + ... + 30229.

It is an arithmetic number, because the mean of its divisors is an integer number (2575044).

Almost surely, 220236207 is an apocalyptic number.

20236207 is a deficient number, since it is larger than the sum of its proper divisors (364145).

20236207 is an equidigital number, since it uses as much as digits as its factorization.

20236207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20236207 is about 4498.4671833859. The cubic root of 20236207 is about 272.5061895741.

Adding to 20236207 its reverse (70263202), we get a palindrome (90499409).

The spelling of 20236207 in words is "twenty million, two hundred thirty-six thousand, two hundred seven".

Divisors: 1 71 421 677 29891 48067 285017 20236207