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20622088 = 2317532861
BaseRepresentation
bin100111010101…
…0101100001000
31102210201012001
41032222230020
520234401323
62014000344
7340166464
oct116525410
942721161
1020622088
1110705753
126aa60b4
134370626
142a4b4a4
151c253ad
hex13aab08

20622088 has 32 divisors (see below), whose sum is σ = 41727960. Its totient is φ = 9518080.

The previous prime is 20622083. The next prime is 20622109. The reversal of 20622088 is 88022602.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20412324 + 209764 = 4518^2 + 458^2 .

It is not an unprimeable number, because it can be changed into a prime (20622083) 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 7 ways as a sum of consecutive naturals, for example, 5778 + ... + 8638.

Almost surely, 220622088 is an apocalyptic number.

It is an amenable number.

20622088 is an abundant number, since it is smaller than the sum of its proper divisors (21105872).

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

20622088 is a wasteful number, since it uses less digits than its factorization.

20622088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937 (or 2933 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 20622088 is about 4541.1549191808. The cubic root of 20622088 is about 274.2274205441.

The spelling of 20622088 in words is "twenty million, six hundred twenty-two thousand, eighty-eight".

Divisors: 1 2 4 8 17 34 53 68 106 136 212 424 901 1802 2861 3604 5722 7208 11444 22888 48637 97274 151633 194548 303266 389096 606532 1213064 2577761 5155522 10311044 20622088