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622242 = 23423167
BaseRepresentation
bin10010111111010100010
31011121120000
42113322202
5124402432
621200430
75201055
oct2277242
91147500
10622242
11395555
12260116
1318a2ba
14122a9c
15c457c
hex97ea2

622242 has 40 divisors (see below), whose sum is σ = 1463616. Its totient is φ = 197208.

The previous prime is 622241. The next prime is 622243. The reversal of 622242 is 242226.

It is a happy number.

622242 is a `hidden beast` number, since 622 + 2 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (622241) and next prime (622243).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (622241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3643 + ... + 3809.

2622242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731808).

622242 is an abundant number, since it is smaller than the sum of its proper divisors (841374).

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

622242 is a wasteful number, since it uses less digits than its factorization.

622242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 195 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 622242 is about 788.8231741018. The cubic root of 622242 is about 85.3728488590.

Adding to 622242 its reverse (242226), we get a palindrome (864468).

It can be divided in two parts, 62224 and 2, that added together give a palindrome (62226).

The spelling of 622242 in words is "six hundred twenty-two thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 81 138 162 167 207 334 414 501 621 1002 1242 1503 1863 3006 3726 3841 4509 7682 9018 11523 13527 23046 27054 34569 69138 103707 207414 311121 622242