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20024101 = 52338287
BaseRepresentation
bin100110001100…
…0101100100101
31101200022220101
41030120230211
520111232401
61553104101
7332126206
oct114305445
941608811
1020024101
1110337449
126858031
1341c13a6
1429335ad
151b58101
hex1318b25

20024101 has 4 divisors (see below), whose sum is σ = 20062912. Its totient is φ = 19985292.

The previous prime is 20024083. The next prime is 20024117. The reversal of 20024101 is 10142002.

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 20024101 - 29 = 20023589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024131) 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, 18621 + ... + 19666.

It is an arithmetic number, because the mean of its divisors is an integer number (5015728).

Almost surely, 220024101 is an apocalyptic number.

It is an amenable number.

20024101 is a deficient number, since it is larger than the sum of its proper divisors (38811).

20024101 is an equidigital number, since it uses as much as digits as its factorization.

20024101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38810.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20024101 is about 4474.8297174306. The cubic root of 20024101 is about 271.5507515234.

Adding to 20024101 its reverse (10142002), we get a palindrome (30166103).

The spelling of 20024101 in words is "twenty million, twenty-four thousand, one hundred one".

Divisors: 1 523 38287 20024101