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20258293 = 114314273
BaseRepresentation
bin100110101000…
…1110111110101
31102010020011011
41031101313311
520141231133
62002112221
7334123036
oct115216765
942106134
1020258293
11104873a0
12694b671
134273b73
142994a8d
151ba26cd
hex1351df5

20258293 has 8 divisors (see below), whose sum is σ = 22156416. Its totient is φ = 18369600.

The previous prime is 20258291. The next prime is 20258309. The reversal of 20258293 is 39285202.

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

It is a cyclic number.

It is not a de Polignac number, because 20258293 - 21 = 20258291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20258291) 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, 2605 + ... + 6877.

It is an arithmetic number, because the mean of its divisors is an integer number (2769552).

Almost surely, 220258293 is an apocalyptic number.

It is an amenable number.

20258293 is a deficient number, since it is larger than the sum of its proper divisors (1898123).

20258293 is a wasteful number, since it uses less digits than its factorization.

20258293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20258293 is about 4500.9213501238. The cubic root of 20258293 is about 272.6052921950.

The spelling of 20258293 in words is "twenty million, two hundred fifty-eight thousand, two hundred ninety-three".

Divisors: 1 11 431 4273 4741 47003 1841663 20258293