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20026282 = 210013141
BaseRepresentation
bin100110001100…
…1001110101010
31101200102220011
41030121032222
520111320112
61553122134
7332135443
oct114311652
941612804
1020026282
1110339051
12685934a
1341c2393
1429342ca
151b58aa7
hex13193aa

20026282 has 4 divisors (see below), whose sum is σ = 30039426. Its totient is φ = 10013140.

The previous prime is 20026273. The next prime is 20026283. The reversal of 20026282 is 28262002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28262002 = 214131001.

It can be written as a sum of positive squares in only one way, i.e., 14508481 + 5517801 = 3809^2 + 2349^2 .

It is not an unprimeable number, because it can be changed into a prime (20026283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006569 + ... + 5006572.

Almost surely, 220026282 is an apocalyptic number.

20026282 is a deficient number, since it is larger than the sum of its proper divisors (10013144).

20026282 is a wasteful number, since it uses less digits than its factorization.

20026282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10013143.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20026282 is about 4475.0734072191. The cubic root of 20026282 is about 271.5606101547.

Adding to 20026282 its reverse (28262002), we get a palindrome (48288284).

The spelling of 20026282 in words is "twenty million, twenty-six thousand, two hundred eighty-two".

Divisors: 1 2 10013141 20026282