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20132110231 = 1910912776543
BaseRepresentation
bin10010101111111101…
…111001111110010111
31220222001010011102021
4102233331321332113
5312212310011411
613125404554011
71311615053632
oct225775717627
956861104367
1020132110231
1185a1062432
123a9a252907
131b8ab81a7c
14d8da74c19
157cc664a71
hex4aff79f97

20132110231 has 16 divisors (see below), whose sum is σ = 21554790400. Its totient is φ = 18748503648.

The previous prime is 20132110223. The next prime is 20132110247. The reversal of 20132110231 is 13201123102.

It is a cyclic number.

It is not a de Polignac number, because 20132110231 - 23 = 20132110223 is a prime.

It is a super-2 number, since 2×201321102312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132120231) 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, 224746 + ... + 301288.

It is an arithmetic number, because the mean of its divisors is an integer number (1347174400).

Almost surely, 220132110231 is an apocalyptic number.

20132110231 is a deficient number, since it is larger than the sum of its proper divisors (1422680169).

20132110231 is a wasteful number, since it uses less digits than its factorization.

20132110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76798.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20132110231 its reverse (13201123102), we get a palindrome (33333233333).

The spelling of 20132110231 in words is "twenty billion, one hundred thirty-two million, one hundred ten thousand, two hundred thirty-one".

Divisors: 1 19 109 127 2071 2413 13843 76543 263017 1454317 8343187 9720961 158520553 184698259 1059584749 20132110231