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20124027 = 3271171409
BaseRepresentation
bin100110011000…
…1000101111011
31101212101222100
41030301011323
520122432102
61555154443
7333023430
oct114610573
941771870
1020124027
11103a5530
1268a5a23
134227a11
14295bb87
151b77a1c
hex133117b

20124027 has 48 divisors (see below), whose sum is σ = 36840960. Its totient is φ = 10281600.

The previous prime is 20124023. The next prime is 20124031. The reversal of 20124027 is 72042102.

It is an interprime number because it is at equal distance from previous prime (20124023) and next prime (20124031).

It is not a de Polignac number, because 20124027 - 22 = 20124023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124023) 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 47 ways as a sum of consecutive naturals, for example, 48999 + ... + 49407.

It is an arithmetic number, because the mean of its divisors is an integer number (767520).

Almost surely, 220124027 is an apocalyptic number.

20124027 is a deficient number, since it is larger than the sum of its proper divisors (16716933).

20124027 is a wasteful number, since it uses less digits than its factorization.

20124027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 20124027 is about 4485.9811635806. The cubic root of 20124027 is about 272.0017075657.

Adding to 20124027 its reverse (72042102), we get a palindrome (92166129).

The spelling of 20124027 in words is "twenty million, one hundred twenty-four thousand, twenty-seven".

Divisors: 1 3 7 9 11 21 33 63 71 77 99 213 231 409 497 639 693 781 1227 1491 2343 2863 3681 4473 4499 5467 7029 8589 13497 16401 25767 29039 31493 40491 49203 87117 94479 203273 261351 283437 319429 609819 958287 1829457 2236003 2874861 6708009 20124027