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20264201 = 83244147
BaseRepresentation
bin100110101001…
…1010100001001
31102010112020222
41031103110021
520141423301
62002155425
7334146206
oct115232411
942115228
1020264201
1110490881
126952b75
134276769
142996cad
151ba431b
hex1353509

20264201 has 4 divisors (see below), whose sum is σ = 20508432. Its totient is φ = 20019972.

The previous prime is 20264183. The next prime is 20264207. The reversal of 20264201 is 10246202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20264201 - 214 = 20247817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20264201.

It is not an unprimeable number, because it can be changed into a prime (20264207) 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, 121991 + ... + 122156.

It is an arithmetic number, because the mean of its divisors is an integer number (5127108).

Almost surely, 220264201 is an apocalyptic number.

It is an amenable number.

20264201 is a deficient number, since it is larger than the sum of its proper divisors (244231).

20264201 is an equidigital number, since it uses as much as digits as its factorization.

20264201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244230.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20264201 is about 4501.5776123488. The cubic root of 20264201 is about 272.6317899117.

The spelling of 20264201 in words is "twenty million, two hundred sixty-four thousand, two hundred one".

Divisors: 1 83 244147 20264201