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20013012033 = 372149941971
BaseRepresentation
bin10010101000110111…
…100101010001000001
31220122202000100101220
4102220313211101001
5311441312341113
613105512145253
71305640536600
oct225067452101
956582010356
1020013012033
11853a907173
123a66398229
131b6c2b2471
14d7bd11a37
157c1e8b523
hex4a8de5441

20013012033 has 48 divisors (see below), whose sum is σ = 31314340800. Its totient is φ = 11335497600.

The previous prime is 20013012007. The next prime is 20013012073. The reversal of 20013012033 is 33021031002.

It is not a de Polignac number, because 20013012033 - 25 = 20013012001 is a prime.

It is a super-4 number, since 4×200130120334 (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (20013012073) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20610238 + ... + 20611208.

It is an arithmetic number, because the mean of its divisors is an integer number (652382100).

Almost surely, 220013012033 is an apocalyptic number.

It is an amenable number.

20013012033 is a deficient number, since it is larger than the sum of its proper divisors (11301328767).

20013012033 is a wasteful number, since it uses less digits than its factorization.

20013012033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078 (or 2071 counting only the distinct ones).

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

Adding to 20013012033 its reverse (33021031002), we get a palindrome (53034043035).

The spelling of 20013012033 in words is "twenty billion, thirteen million, twelve thousand, thirty-three".

Divisors: 1 3 7 21 49 147 149 447 941 971 1043 2823 2913 3129 6587 6797 7301 19761 20391 21903 46109 47579 138327 140209 142737 144679 420627 434037 913711 981463 1012753 2741133 2944389 3038259 6395977 6870241 7089271 19187931 20610723 21267813 44771839 134315517 136142939 408428817 953000573 2859001719 6671004011 20013012033