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20485201 = 115993109
BaseRepresentation
bin100111000100…
…1010001010001
31102112202102011
41032021101101
520221011301
62011022521
7336056422
oct116112121
942482364
1020485201
1110621920
126a3aa41
134323229
142a13649
151be9a51
hex1389451

20485201 has 8 divisors (see below), whose sum is σ = 22392000. Its totient is φ = 18585840.

The previous prime is 20485193. The next prime is 20485217. The reversal of 20485201 is 10258402.

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 20485201 - 23 = 20485193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20485261) 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, 5035 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (2799000).

Almost surely, 220485201 is an apocalyptic number.

It is an amenable number.

20485201 is a deficient number, since it is larger than the sum of its proper divisors (1906799).

20485201 is a wasteful number, since it uses less digits than its factorization.

20485201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 20485201 is about 4526.0579978608. The cubic root of 20485201 is about 273.6193098853.

The spelling of 20485201 in words is "twenty million, four hundred eighty-five thousand, two hundred one".

Divisors: 1 11 599 3109 6589 34199 1862291 20485201