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20560074 = 233679337
BaseRepresentation
bin100111001101…
…1100011001010
31102200120010020
41032123203022
520230410244
62012401310
7336520623
oct116334312
942616106
1020560074
11106730a7
126a76236
13434b332
142a32a4a
151c11d19
hex139b8ca

20560074 has 16 divisors (see below), whose sum is σ = 41236608. Its totient is φ = 6833952.

The previous prime is 20560069. The next prime is 20560079. The reversal of 20560074 is 47006502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20560069) and next prime (20560079).

It is not an unprimeable number, because it can be changed into a prime (20560079) 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 7 ways as a sum of consecutive naturals, for example, 2467 + ... + 6870.

It is an arithmetic number, because the mean of its divisors is an integer number (2577288).

Almost surely, 220560074 is an apocalyptic number.

20560074 is an abundant number, since it is smaller than the sum of its proper divisors (20676534).

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

20560074 is a wasteful number, since it uses less digits than its factorization.

20560074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9709.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20560074 is about 4534.3217794947. The cubic root of 20560074 is about 273.9522622714.

Adding to 20560074 its reverse (47006502), we get a palindrome (67566576).

The spelling of 20560074 in words is "twenty million, five hundred sixty thousand, seventy-four".

Divisors: 1 2 3 6 367 734 1101 2202 9337 18674 28011 56022 3426679 6853358 10280037 20560074