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20052097 = 131639463
BaseRepresentation
bin100110001111…
…1100010000001
31101201202022021
41030133202001
520113131342
61553441441
7332303632
oct114374201
941652267
1020052097
111035648a
126870281
134201060
14293d889
151b61567
hex131f881

20052097 has 8 divisors (see below), whose sum is σ = 21729344. Its totient is φ = 18394128.

The previous prime is 20052091. The next prime is 20052101. The reversal of 20052097 is 79025002.

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 20052097 - 223 = 11663489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20052091) 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 7 ways as a sum of consecutive naturals, for example, 2613 + ... + 6850.

It is an arithmetic number, because the mean of its divisors is an integer number (2716168).

Almost surely, 220052097 is an apocalyptic number.

It is an amenable number.

20052097 is a deficient number, since it is larger than the sum of its proper divisors (1677247).

20052097 is a wasteful number, since it uses less digits than its factorization.

20052097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9639.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 20052097 is about 4477.9567885365. The cubic root of 20052097 is about 271.6772456685.

Adding to 20052097 its reverse (79025002), we get a palindrome (99077099).

The spelling of 20052097 in words is "twenty million, fifty-two thousand, ninety-seven".

Divisors: 1 13 163 2119 9463 123019 1542469 20052097