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20075484 = 223111311699
BaseRepresentation
bin100110010010…
…1001111011100
31101202221101110
41030211033130
520114403414
61554142020
7332432052
oct114451734
941687343
1020075484
1110372010
126881910
13420b8b0
1429481d2
151b68459
hex13253dc

20075484 has 48 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 5615040.

The previous prime is 20075477. The next prime is 20075501. The reversal of 20075484 is 48457002.

It is a congruent number.

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, 4134 + ... + 7565.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 220075484 is an apocalyptic number.

It is an amenable number.

20075484 is an abundant number, since it is smaller than the sum of its proper divisors (34961316).

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

20075484 is a wasteful number, since it uses less digits than its factorization.

20075484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11730 (or 11728 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 20075484 is about 4480.5673747864. The cubic root of 20075484 is about 271.7828247708.

The spelling of 20075484 in words is "twenty million, seventy-five thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 286 429 572 858 1716 11699 23398 35097 46796 70194 128689 140388 152087 257378 304174 386067 456261 514756 608348 772134 912522 1544268 1672957 1825044 3345914 5018871 6691828 10037742 20075484