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20526324 = 22371318797
BaseRepresentation
bin100111001001…
…1010011110100
31102121211211020
41032103103310
520223320244
62011541140
7336320340
oct116232364
942554736
1020526324
111064a805
126a5a7b0
134338b70
142a24620
151c06d19
hex13934f4

20526324 has 48 divisors (see below), whose sum is σ = 58950528. Its totient is φ = 5413248.

The previous prime is 20526307. The next prime is 20526329. The reversal of 20526324 is 42362502.

It is a junction number, because it is equal to n+sod(n) for n = 20526294 and 20526303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20526329) by changing a digit.

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, 8307 + ... + 10490.

It is an arithmetic number, because the mean of its divisors is an integer number (1228136).

Almost surely, 220526324 is an apocalyptic number.

It is an amenable number.

20526324 is an abundant number, since it is smaller than the sum of its proper divisors (38424204).

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

20526324 is a wasteful number, since it uses less digits than its factorization.

20526324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18824 (or 18822 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20526324 is about 4530.5986359421. The cubic root of 20526324 is about 273.8022797923.

Adding to 20526324 its reverse (42362502), we get a palindrome (62888826).

The spelling of 20526324 in words is "twenty million, five hundred twenty-six thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 18797 37594 56391 75188 112782 131579 225564 244361 263158 394737 488722 526316 733083 789474 977444 1466166 1578948 1710527 2932332 3421054 5131581 6842108 10263162 20526324