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20258192 = 248271531
BaseRepresentation
bin100110101000…
…1110110010000
31102010020000102
41031101312100
520141230232
62002111532
7334122533
oct115216620
942106012
1020258192
1110487309
12694b5a8
134273ac6
142994a1a
151ba2662
hex1351d90

20258192 has 20 divisors (see below), whose sum is σ = 39323376. Its totient is φ = 10110240.

The previous prime is 20258191. The next prime is 20258201. The reversal of 20258192 is 29185202.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20258191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12467 + ... + 13997.

Almost surely, 220258192 is an apocalyptic number.

It is an amenable number.

20258192 is a deficient number, since it is larger than the sum of its proper divisors (19065184).

20258192 is a wasteful number, since it uses less digits than its factorization.

20258192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366 (or 2360 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 20258192 is about 4500.9101301848. The cubic root of 20258192 is about 272.6048391594.

The spelling of 20258192 in words is "twenty million, two hundred fifty-eight thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 827 1531 1654 3062 3308 6124 6616 12248 13232 24496 1266137 2532274 5064548 10129096 20258192