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20606814 = 2321144823
BaseRepresentation
bin100111010011…
…0111101011110
31102202221020100
41032212331132
520233404224
62013401530
7340104114
oct116467536
942687210
1020606814
11106a5228
126a992a6
1343666a7
142a45ab4
151c20ac9
hex13a6f5e

20606814 has 12 divisors (see below), whose sum is σ = 44648136. Its totient is φ = 6868932.

The previous prime is 20606813. The next prime is 20606857. The reversal of 20606814 is 41860602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20606813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572394 + ... + 572429.

It is an arithmetic number, because the mean of its divisors is an integer number (3720678).

Almost surely, 220606814 is an apocalyptic number.

20606814 is an abundant number, since it is smaller than the sum of its proper divisors (24041322).

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

20606814 is a wasteful number, since it uses less digits than its factorization.

20606814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144831 (or 1144828 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20606814 is about 4539.4728768878. The cubic root of 20606814 is about 274.1597005320.

The spelling of 20606814 in words is "twenty million, six hundred six thousand, eight hundred fourteen".

Divisors: 1 2 3 6 9 18 1144823 2289646 3434469 6868938 10303407 20606814