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20369125 = 53723279
BaseRepresentation
bin100110110110…
…0111011100101
31102022212012001
41031230323211
520203303000
62004325301
7335064130
oct115547345
942285161
1020369125
1110552697
1269a3831
1342b244a
1429c3217
151bc546a
hex136cee5

20369125 has 16 divisors (see below), whose sum is σ = 29053440. Its totient is φ = 13966800.

The previous prime is 20369081. The next prime is 20369137. The reversal of 20369125 is 52196302.

It is not a de Polignac number, because 20369125 - 29 = 20368613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20369093 and 20369102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10765 + ... + 12514.

It is an arithmetic number, because the mean of its divisors is an integer number (1815840).

Almost surely, 220369125 is an apocalyptic number.

20369125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20369125 is a deficient number, since it is larger than the sum of its proper divisors (8684315).

20369125 is an equidigital number, since it uses as much as digits as its factorization.

20369125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23301 (or 23291 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 20369125 is about 4513.2167020873. The cubic root of 20369125 is about 273.1015244953.

The spelling of 20369125 in words is "twenty million, three hundred sixty-nine thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 875 23279 116395 162953 581975 814765 2909875 4073825 20369125