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22000002 = 238294423
BaseRepresentation
bin101001111101…
…1000110000010
31112101201022220
41103323012002
521113000002
62103311510
7354665643
oct123730602
945351286
1022000002
1111466a22
12744b596
13473386b
142cc96ca
151de87bc
hex14fb182

22000002 has 16 divisors (see below), whose sum is σ = 44063040. Its totient is φ = 7322832.

The previous prime is 22000001. The next prime is 22000003. The reversal of 22000002 is 20000022.

It is an interprime number because it is at equal distance from previous prime (22000001) and next prime (22000003).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (22000001) 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, 2763 + ... + 7185.

It is an arithmetic number, because the mean of its divisors is an integer number (2753940).

Almost surely, 222000002 is an apocalyptic number.

22000002 is an abundant number, since it is smaller than the sum of its proper divisors (22063038).

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

22000002 is a wasteful number, since it uses less digits than its factorization.

22000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257.

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 22000002 is about 4690.4159730241. The cubic root of 22000002 is about 280.2039415566.

Adding to 22000002 its reverse (20000022), we get a palindrome (42000024).

It can be divided in two parts, 2 and 2000002, that multiplied together give a palindrome (4000004).

The spelling of 22000002 in words is "twenty-two million, two", and thus it is an aban number and an uban number.