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20312062 = 212897879
BaseRepresentation
bin100110101111…
…0111111111110
31102012221220121
41031132333332
520144441222
62003205154
7334435561
oct115367776
942187817
1020312062
1110513831
1269767ba
134292494
1429aa4d8
151bb35c7
hex135effe

20312062 has 8 divisors (see below), whose sum is σ = 30495600. Its totient is φ = 10146864.

The previous prime is 20312057. The next prime is 20312063. The reversal of 20312062 is 26021302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362 + ... + 6517.

It is an arithmetic number, because the mean of its divisors is an integer number (3811950).

Almost surely, 220312062 is an apocalyptic number.

20312062 is a deficient number, since it is larger than the sum of its proper divisors (10183538).

20312062 is a wasteful number, since it uses less digits than its factorization.

20312062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20312062 is about 4506.8905023308. The cubic root of 20312062 is about 272.8462596021.

Adding to 20312062 its reverse (26021302), we get a palindrome (46333364).

The spelling of 20312062 in words is "twenty million, three hundred twelve thousand, sixty-two".

Divisors: 1 2 1289 2578 7879 15758 10156031 20312062