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20227051 = 1323611109
BaseRepresentation
bin100110100101…
…0001111101011
31102001122022001
41031022033223
520134231201
62001311431
7333632665
oct115121753
942048261
1020227051
1110465979
126935577
134262890
142987535
151b98301
hex134a3eb

20227051 has 16 divisors (see below), whose sum is σ = 23123520. Its totient is φ = 17550720.

The previous prime is 20227043. The next prime is 20227073. The reversal of 20227051 is 15072202.

It is a cyclic number.

It is not a de Polignac number, because 20227051 - 23 = 20227043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20227651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17685 + ... + 18793.

It is an arithmetic number, because the mean of its divisors is an integer number (1445220).

Almost surely, 220227051 is an apocalyptic number.

20227051 is a deficient number, since it is larger than the sum of its proper divisors (2896469).

20227051 is a wasteful number, since it uses less digits than its factorization.

20227051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20227051 is about 4497.4493882644. The cubic root of 20227051 is about 272.4650843237.

Adding to 20227051 its reverse (15072202), we get a palindrome (35299253).

The spelling of 20227051 in words is "twenty million, two hundred twenty-seven thousand, fifty-one".

Divisors: 1 13 23 61 299 793 1109 1403 14417 18239 25507 67649 331591 879437 1555927 20227051