Search a number
-
+
20106162 = 2321117009
BaseRepresentation
bin100110010110…
…0101110110010
31101211111110200
41030230232302
520121344122
61554540030
7332620356
oct114545662
941744420
1020106162
111039306a
126897616
13421c84b
142955466
151b725ac
hex132cbb2

20106162 has 12 divisors (see below), whose sum is σ = 43563390. Its totient is φ = 6702048.

The previous prime is 20106157. The next prime is 20106167. The reversal of 20106162 is 26160102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20106157) and next prime (20106167).

It can be written as a sum of positive squares in only one way, i.e., 17313921 + 2792241 = 4161^2 + 1671^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1117009 = 20106162 / (2 + 0 + 1 + 0 + 6 + 1 + 6 + 2).

It is not an unprimeable number, because it can be changed into a prime (20106167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558487 + ... + 558522.

Almost surely, 220106162 is an apocalyptic number.

20106162 is an abundant number, since it is smaller than the sum of its proper divisors (23457228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20106162 is a wasteful number, since it uses less digits than its factorization.

20106162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117017 (or 1117014 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20106162 is about 4483.9895182750. The cubic root of 20106162 is about 271.9211943702.

Adding to 20106162 its reverse (26160102), we get a palindrome (46266264).

The spelling of 20106162 in words is "twenty million, one hundred six thousand, one hundred sixty-two".

Divisors: 1 2 3 6 9 18 1117009 2234018 3351027 6702054 10053081 20106162