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20024213 = 1111231621
BaseRepresentation
bin100110001100…
…0101110010101
31101200100001112
41030120232111
520111233323
61553104405
7332126426
oct114305625
941610045
1020024213
1110337540
126858105
1341c1461
14293364d
151b58178
hex1318b95

20024213 has 8 divisors (see below), whose sum is σ = 21877536. Its totient is φ = 18176400.

The previous prime is 20024177. The next prime is 20024219. The reversal of 20024213 is 31242002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-20024213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024219) 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, 11543 + ... + 13163.

It is an arithmetic number, because the mean of its divisors is an integer number (2734692).

Almost surely, 220024213 is an apocalyptic number.

It is an amenable number.

20024213 is a deficient number, since it is larger than the sum of its proper divisors (1853323).

20024213 is a wasteful number, since it uses less digits than its factorization.

20024213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20024213 is about 4474.8422318558. The cubic root of 20024213 is about 271.5512578071.

Adding to 20024213 its reverse (31242002), we get a palindrome (51266215).

The spelling of 20024213 in words is "twenty million, twenty-four thousand, two hundred thirteen".

Divisors: 1 11 1123 1621 12353 17831 1820383 20024213