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20013063 = 371761919
BaseRepresentation
bin100110001011…
…0000000000111
31101122202202120
41030112000013
520110404223
61552541023
7332052060
oct114260007
941582676
1020013063
111032a124
126851773
1341b9365
14292d567
151b54be3
hex1316007

20013063 has 32 divisors (see below), whose sum is σ = 32855040. Its totient is φ = 10575360.

The previous prime is 20013053. The next prime is 20013067. The reversal of 20013063 is 36031002.

It is not a de Polignac number, because 20013063 - 25 = 20013031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21318 + ... + 22236.

It is an arithmetic number, because the mean of its divisors is an integer number (1026720).

Almost surely, 220013063 is an apocalyptic number.

20013063 is a deficient number, since it is larger than the sum of its proper divisors (12841977).

20013063 is a wasteful number, since it uses less digits than its factorization.

20013063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20013063 is about 4473.5962043975. The cubic root of 20013063 is about 271.5008461932.

Adding to 20013063 its reverse (36031002), we get a palindrome (56044065).

The spelling of 20013063 in words is "twenty million, thirteen thousand, sixty-three".

Divisors: 1 3 7 17 21 51 61 119 183 357 427 919 1037 1281 2757 3111 6433 7259 15623 19299 21777 46869 56059 109361 168177 328083 392413 953003 1177239 2859009 6671021 20013063