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2020425 = 352113179
BaseRepresentation
bin111101101010001001001
310210122111120
413231101021
51004123200
6111145453
723113311
oct7552111
93718446
102020425
11115aa80
12815289
13559824
143a8441
1529d9a0
hex1ed449

2020425 has 48 divisors (see below), whose sum is σ = 3809280. Its totient is φ = 936000.

The previous prime is 2020423. The next prime is 2020429. The reversal of 2020425 is 5240202.

2020425 = 1762 + 1772 + ... + 2252.

It is not a de Polignac number, because 2020425 - 21 = 2020423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2020423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25536 + ... + 25614.

It is an arithmetic number, because the mean of its divisors is an integer number (79360).

22020425 is an apocalyptic number.

2020425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2020425 is a deficient number, since it is larger than the sum of its proper divisors (1788855).

2020425 is a wasteful number, since it uses less digits than its factorization.

2020425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2020425 is about 1421.4165469700. The cubic root of 2020425 is about 126.4195513006.

Adding to 2020425 its reverse (5240202), we get a palindrome (7260627).

The spelling of 2020425 in words is "two million, twenty thousand, four hundred twenty-five".

Divisors: 1 3 5 11 15 25 31 33 55 75 79 93 155 165 237 275 341 395 465 775 825 869 1023 1185 1705 1975 2325 2449 2607 4345 5115 5925 7347 8525 12245 13035 21725 25575 26939 36735 61225 65175 80817 134695 183675 404085 673475 2020425