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20560084 = 225987119
BaseRepresentation
bin100111001101…
…1100011010100
31102200120010121
41032123203110
520230410314
62012401324
7336520636
oct116334324
942616117
1020560084
1110673106
126a76244
13434b33c
142a32a56
151c11d24
hex139b8d4

20560084 has 12 divisors (see below), whose sum is σ = 36590400. Its totient is φ = 10105688.

The previous prime is 20560081. The next prime is 20560087. The reversal of 20560084 is 48006502.

It is an interprime number because it is at equal distance from previous prime (20560081) and next prime (20560087).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20560081) 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 3 ways as a sum of consecutive naturals, for example, 43324 + ... + 43795.

It is an arithmetic number, because the mean of its divisors is an integer number (3049200).

Almost surely, 220560084 is an apocalyptic number.

It is an amenable number.

20560084 is a deficient number, since it is larger than the sum of its proper divisors (16030316).

20560084 is a wasteful number, since it uses less digits than its factorization.

20560084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87182 (or 87180 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20560084 is about 4534.3228821953. The cubic root of 20560084 is about 273.9523066863.

Adding to 20560084 its reverse (48006502), we get a palindrome (68566586).

The spelling of 20560084 in words is "twenty million, five hundred sixty thousand, eighty-four".

Divisors: 1 2 4 59 118 236 87119 174238 348476 5140021 10280042 20560084