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20330158 = 258717317
BaseRepresentation
bin100110110001…
…1011010101110
31102020212201211
41031203122232
520201031113
62003425034
7334542412
oct115433256
942225654
1020330158
1110526392
12698517a
13429a7a4
1429b2d42
151bb8b3d
hex13636ae

20330158 has 8 divisors (see below), whose sum is σ = 30548952. Its totient is φ = 10147176.

The previous prime is 20330153. The next prime is 20330201. The reversal of 20330158 is 85103302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7485 + ... + 9832.

It is an arithmetic number, because the mean of its divisors is an integer number (3818619).

Almost surely, 220330158 is an apocalyptic number.

20330158 is a deficient number, since it is larger than the sum of its proper divisors (10218794).

20330158 is a wasteful number, since it uses less digits than its factorization.

20330158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17906.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20330158 is about 4508.8976479845. The cubic root of 20330158 is about 272.9272617244.

The spelling of 20330158 in words is "twenty million, three hundred thirty thousand, one hundred fifty-eight".

Divisors: 1 2 587 1174 17317 34634 10165079 20330158