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20124633 = 337181303
BaseRepresentation
bin100110011000…
…1001111011001
31101212102210210
41030301033121
520122442013
61555201333
7333025254
oct114611731
941772723
1020124633
11103a5a31
1268a6249
134228089
14295c09b
151b77cc3
hex13313d9

20124633 has 8 divisors (see below), whose sum is σ = 27558208. Its totient is φ = 13053744.

The previous prime is 20124631. The next prime is 20124647. The reversal of 20124633 is 33642102.

It is a happy number.

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

It is not a de Polignac number, because 20124633 - 21 = 20124631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20124631) 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 7 ways as a sum of consecutive naturals, for example, 90541 + ... + 90762.

It is an arithmetic number, because the mean of its divisors is an integer number (3444776).

Almost surely, 220124633 is an apocalyptic number.

It is an amenable number.

20124633 is a deficient number, since it is larger than the sum of its proper divisors (7433575).

20124633 is a wasteful number, since it uses less digits than its factorization.

20124633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181343.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20124633 is about 4486.0487068243. The cubic root of 20124633 is about 272.0044378241.

Adding to 20124633 its reverse (33642102), we get a palindrome (53766735).

The spelling of 20124633 in words is "twenty million, one hundred twenty-four thousand, six hundred thirty-three".

Divisors: 1 3 37 111 181303 543909 6708211 20124633