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20012675 = 527910133
BaseRepresentation
bin100110001010…
…1111010000011
31101122202020012
41030111322003
520110401200
61552535135
7332050664
oct114257203
941582205
1020012675
1110329901
1268514ab
1341b9127
14292d36b
151b54a35
hex1315e83

20012675 has 12 divisors (see below), whose sum is σ = 25132320. Its totient is φ = 15805920.

The previous prime is 20012609. The next prime is 20012683. The reversal of 20012675 is 57621002.

It is not a de Polignac number, because 20012675 - 216 = 19947139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20012675.

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, 3092 + ... + 7041.

It is an arithmetic number, because the mean of its divisors is an integer number (2094360).

Almost surely, 220012675 is an apocalyptic number.

20012675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20012675 is a deficient number, since it is larger than the sum of its proper divisors (5119645).

20012675 is a wasteful number, since it uses less digits than its factorization.

20012675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222 (or 10217 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20012675 is about 4473.5528386284. The cubic root of 20012675 is about 271.4990916224.

Adding to 20012675 its reverse (57621002), we get a palindrome (77633677).

The spelling of 20012675 in words is "twenty million, twelve thousand, six hundred seventy-five".

Divisors: 1 5 25 79 395 1975 10133 50665 253325 800507 4002535 20012675