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20158327 = 723125207
BaseRepresentation
bin100110011100…
…1011101110111
31101221011000201
41030321131313
520130031302
62000021331
7333225430
oct114713567
941834021
1020158327
1110419282
126901847
13423a507
14296a487
151b82c87
hex1339777

20158327 has 8 divisors (see below), whose sum is σ = 24039936. Its totient is φ = 16527192.

The previous prime is 20158291. The next prime is 20158337. The reversal of 20158327 is 72385102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20158327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20158295 and 20158304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20158337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62443 + ... + 62764.

It is an arithmetic number, because the mean of its divisors is an integer number (3004992).

Almost surely, 220158327 is an apocalyptic number.

20158327 is a deficient number, since it is larger than the sum of its proper divisors (3881609).

20158327 is a wasteful number, since it uses less digits than its factorization.

20158327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125237.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20158327 is about 4489.8025569060. The cubic root of 20158327 is about 272.1561558279.

The spelling of 20158327 in words is "twenty million, one hundred fifty-eight thousand, three hundred twenty-seven".

Divisors: 1 7 23 161 125207 876449 2879761 20158327