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20052828 = 22321921543
BaseRepresentation
bin100110001111…
…1101101011100
31101201210022100
41030133231130
520113142303
61553445100
7332306025
oct114375534
941653270
1020052828
1110356a94
126870790
1342014a3
14293dc4c
151b618a3
hex131fb5c

20052828 has 54 divisors (see below), whose sum is σ = 53532024. Its totient is φ = 6328368.

The previous prime is 20052821. The next prime is 20052869. The reversal of 20052828 is 82825002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12225 + ... + 13767.

Almost surely, 220052828 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 20052828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26766012).

20052828 is an abundant number, since it is smaller than the sum of its proper divisors (33479196).

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

20052828 is a wasteful number, since it uses less digits than its factorization.

20052828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 20052828 is about 4478.0384098397. The cubic root of 20052828 is about 271.6805469633.

The spelling of 20052828 in words is "twenty million, fifty-two thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 361 684 722 1083 1444 1543 2166 3086 3249 4332 4629 6172 6498 9258 12996 13887 18516 27774 29317 55548 58634 87951 117268 175902 263853 351804 527706 557023 1055412 1114046 1671069 2228092 3342138 5013207 6684276 10026414 20052828