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20122633 = 89311727
BaseRepresentation
bin100110011000…
…0110000001001
31101212100001201
41030300300021
520122411013
61555144201
7333016366
oct114606011
941770051
1020122633
11103a4483
1268a5061
1342271ab
14295b46d
151b773dd
hex1330c09

20122633 has 8 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 19805280.

The previous prime is 20122621. The next prime is 20122637. The reversal of 20122633 is 33622102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20122633 - 25 = 20122601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122633.

It is not an unprimeable number, because it can be changed into a prime (20122637) 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, 27316 + ... + 28042.

It is an arithmetic number, because the mean of its divisors is an integer number (2555280).

Almost surely, 220122633 is an apocalyptic number.

It is an amenable number.

20122633 is a deficient number, since it is larger than the sum of its proper divisors (319607).

20122633 is an equidigital number, since it uses as much as digits as its factorization.

20122633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20122633 is about 4485.8257879681. The cubic root of 20122633 is about 271.9954268623.

Adding to 20122633 its reverse (33622102), we get a palindrome (53744735).

The spelling of 20122633 in words is "twenty million, one hundred twenty-two thousand, six hundred thirty-three".

Divisors: 1 89 311 727 27679 64703 226097 20122633