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20410147 = 42534799
BaseRepresentation
bin100110111011…
…0111100100011
31102101221110101
41031312330203
520211111042
62005243231
7335324542
oct115667443
942357411
1020410147
111058049a
126a03517
1342c8014
1429d4159
151bd26b7
hex1376f23

20410147 has 4 divisors (see below), whose sum is σ = 20419200. Its totient is φ = 20401096.

The previous prime is 20410139. The next prime is 20410163. The reversal of 20410147 is 74101402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20410147 - 23 = 20410139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20410847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854 + ... + 6652.

It is an arithmetic number, because the mean of its divisors is an integer number (5104800).

Almost surely, 220410147 is an apocalyptic number.

20410147 is a deficient number, since it is larger than the sum of its proper divisors (9053).

20410147 is an equidigital number, since it uses as much as digits as its factorization.

20410147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20410147 is about 4517.7590683878. The cubic root of 20410147 is about 273.2847373782.

Adding to 20410147 its reverse (74101402), we get a palindrome (94511549).

The spelling of 20410147 in words is "twenty million, four hundred ten thousand, one hundred forty-seven".

Divisors: 1 4253 4799 20410147