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20124054 = 2321118003
BaseRepresentation
bin100110011000…
…1000110010110
31101212102000100
41030301012112
520122432204
61555154530
7333023466
oct114610626
941772010
1020124054
11103a5555
1268a5a46
134227a32
14295bba6
151b77a39
hex1331196

20124054 has 12 divisors (see below), whose sum is σ = 43602156. Its totient is φ = 6708012.

The previous prime is 20124031. The next prime is 20124079. The reversal of 20124054 is 45042102.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1118003 = 20124054 / (2 + 0 + 1 + 2 + 4 + 0 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 558984 + ... + 559019.

It is an arithmetic number, because the mean of its divisors is an integer number (3633513).

Almost surely, 220124054 is an apocalyptic number.

20124054 is an abundant number, since it is smaller than the sum of its proper divisors (23478102).

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

20124054 is a wasteful number, since it uses less digits than its factorization.

20124054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118011 (or 1118008 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20124054 is about 4485.9841729547. The cubic root of 20124054 is about 272.0018292120.

Adding to 20124054 its reverse (45042102), we get a palindrome (65166156).

The spelling of 20124054 in words is "twenty million, one hundred twenty-four thousand, fifty-four".

Divisors: 1 2 3 6 9 18 1118003 2236006 3354009 6708018 10062027 20124054