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20693026 = 264316091
BaseRepresentation
bin100111011110…
…0000000100010
31102221022111101
41032330000202
520244134101
62015305014
7340613344
oct116740042
942838441
1020693026
1110753a82
126b1b16a
1343969c3
142a69294
151c3b401
hex13bc022

20693026 has 8 divisors (see below), whose sum is σ = 31089744. Its totient is φ = 10329780.

The previous prime is 20693003. The next prime is 20693039. The reversal of 20693026 is 62039602.

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

It is a junction number, because it is equal to n+sod(n) for n = 20692985 and 20693003.

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, 6760 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (3886218).

Almost surely, 220693026 is an apocalyptic number.

20693026 is a deficient number, since it is larger than the sum of its proper divisors (10396718).

20693026 is a wasteful number, since it uses less digits than its factorization.

20693026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16736.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 20693026 is about 4548.9587819632. The cubic root of 20693026 is about 274.5414993390.

The spelling of 20693026 in words is "twenty million, six hundred ninety-three thousand, twenty-six".

Divisors: 1 2 643 1286 16091 32182 10346513 20693026