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20326124 = 22713192939
BaseRepresentation
bin100110110001…
…0011011101100
31102020200012102
41031202123230
520200413444
62003354232
7334524560
oct115423354
942220172
1020326124
1110523355
126982978
1342989c0
1429b16a0
151bb784e
hex13626ec

20326124 has 48 divisors (see below), whose sum is σ = 46099200. Its totient is φ = 7615296.

The previous prime is 20326099. The next prime is 20326157. The reversal of 20326124 is 42162302.

It is a junction number, because it is equal to n+sod(n) for n = 20326096 and 20326105.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5447 + ... + 8385.

It is an arithmetic number, because the mean of its divisors is an integer number (960400).

Almost surely, 220326124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20326124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23049600).

20326124 is an abundant number, since it is smaller than the sum of its proper divisors (25773076).

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

20326124 is a wasteful number, since it uses less digits than its factorization.

20326124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2980 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20326124 is about 4508.4502880702. The cubic root of 20326124 is about 272.9092087182.

Adding to 20326124 its reverse (42162302), we get a palindrome (62488426).

The spelling of 20326124 in words is "twenty million, three hundred twenty-six thousand, one hundred twenty-four".

Divisors: 1 2 4 7 13 14 19 26 28 38 52 76 91 133 182 247 266 364 494 532 988 1729 2939 3458 5878 6916 11756 20573 38207 41146 55841 76414 82292 111682 152828 223364 267449 390887 534898 725933 781774 1069796 1451866 1563548 2903732 5081531 10163062 20326124