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20420301 = 3111494153
BaseRepresentation
bin100110111100…
…1011011001101
31102102110101110
41031321123031
520211422201
62005402233
7335366256
oct115713315
942373343
1020420301
1110588090
126a09379
1342cc825
1429d7b2d
151bd56d6
hex13796cd

20420301 has 16 divisors (see below), whose sum is σ = 29908800. Its totient is φ = 12289920.

The previous prime is 20420293. The next prime is 20420303. The reversal of 20420301 is 10302402.

It is not a de Polignac number, because 20420301 - 23 = 20420293 is a prime.

It is a super-3 number, since 3×204203013 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420303) 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, 2841 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (1869300).

Almost surely, 220420301 is an apocalyptic number.

It is an amenable number.

20420301 is a deficient number, since it is larger than the sum of its proper divisors (9488499).

20420301 is a wasteful number, since it uses less digits than its factorization.

20420301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20420301 is about 4518.8827158934. The cubic root of 20420301 is about 273.3300493690.

Adding to 20420301 its reverse (10302402), we get a palindrome (30722703).

The spelling of 20420301 in words is "twenty million, four hundred twenty thousand, three hundred one".

Divisors: 1 3 11 33 149 447 1639 4153 4917 12459 45683 137049 618797 1856391 6806767 20420301