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20026237 = 711260081
BaseRepresentation
bin100110001100…
…1001101111101
31101200102211111
41030121031331
520111314422
61553122021
7332135350
oct114311575
941612744
1020026237
1110339010
126859311
1341c235a
142934297
151b58a77
hex131937d

20026237 has 8 divisors (see below), whose sum is σ = 24967872. Its totient is φ = 15604800.

The previous prime is 20026231. The next prime is 20026241. The reversal of 20026237 is 73262002.

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 20026237 - 23 = 20026229 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 (20026231) 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, 129964 + ... + 130117.

It is an arithmetic number, because the mean of its divisors is an integer number (3120984).

Almost surely, 220026237 is an apocalyptic number.

It is an amenable number.

20026237 is a deficient number, since it is larger than the sum of its proper divisors (4941635).

20026237 is a wasteful number, since it uses less digits than its factorization.

20026237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260099.

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

The square root of 20026237 is about 4475.0683793658. The cubic root of 20026237 is about 271.5604067514.

Adding to 20026237 its reverse (73262002), we get a palindrome (93288239).

The spelling of 20026237 in words is "twenty million, twenty-six thousand, two hundred thirty-seven".

Divisors: 1 7 11 77 260081 1820567 2860891 20026237