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20688062 = 283912329
BaseRepresentation
bin100111011101…
…0110010111110
31102221001200112
41032322302332
520244004222
62015230022
7340563023
oct116726276
942831615
1020688062
111075027a
126b18312
134394675
142a6754a
151c39be2
hex13bacbe

20688062 has 8 divisors (see below), whose sum is σ = 31071600. Its totient is φ = 10330864.

The previous prime is 20688043. The next prime is 20688071. The reversal of 20688062 is 26088602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4487 + ... + 7842.

It is an arithmetic number, because the mean of its divisors is an integer number (3883950).

Almost surely, 220688062 is an apocalyptic number.

20688062 is a deficient number, since it is larger than the sum of its proper divisors (10383538).

20688062 is a wasteful number, since it uses less digits than its factorization.

20688062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13170.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20688062 is about 4548.4131298729. The cubic root of 20688062 is about 274.5195445511.

The spelling of 20688062 in words is "twenty million, six hundred eighty-eight thousand, sixty-two".

Divisors: 1 2 839 1678 12329 24658 10344031 20688062