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20065010 = 257240949
BaseRepresentation
bin100110010001…
…0101011110010
31101202102000112
41030202223302
520114040020
61554021322
7332356400
oct114425362
941672015
1020065010
1110365159
126877842
134206bb4
142944470
151b652c5
hex1322af2

20065010 has 24 divisors (see below), whose sum is σ = 42014700. Its totient is φ = 6879264.

The previous prime is 20064997. The next prime is 20065033. The reversal of 20065010 is 1056002.

It can be written as a sum of positive squares in 2 ways, for example, as 19882681 + 182329 = 4459^2 + 427^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19985 + ... + 20964.

Almost surely, 220065010 is an apocalyptic number.

20065010 is an abundant number, since it is smaller than the sum of its proper divisors (21949690).

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

20065010 is a wasteful number, since it uses less digits than its factorization.

20065010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40970 (or 40963 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20065010 is about 4479.3983971065. The cubic root of 20065010 is about 271.7355507174.

The spelling of 20065010 in words is "twenty million, sixty-five thousand, ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 40949 81898 204745 286643 409490 573286 1433215 2006501 2866430 4013002 10032505 20065010