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20110211110002 = 23131715166071727
BaseRepresentation
bin1001001001010010001011…
…11111010101010001110010
32122012111222012002222111210
410210221011333111101302
510113441203021010002
6110434300424420550
74143625531011246
oct444510577252162
978174865088453
1020110211110002
116453768999222
1223095b1017756
13b2b500457ab0
144d74a74b6426
1524d1a577e96c
hex124a45fd5472

20110211110002 has 32 divisors (see below), whose sum is σ = 45862200905472. Its totient is φ = 5823771542784.

The previous prime is 20110211110001. The next prime is 20110211110021. The reversal of 20110211110002 is 20001111201102.

It is a self number, because there is not a number n which added to its sum of digits gives 20110211110002.

It is not an unprimeable number, because it can be changed into a prime (20110211110001) 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, 7583034538 + ... + 7583037189.

It is an arithmetic number, because the mean of its divisors is an integer number (1433193778296).

Almost surely, 220110211110002 is an apocalyptic number.

20110211110002 is an abundant number, since it is smaller than the sum of its proper divisors (25751989795470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110211110002 is a wasteful number, since it uses less digits than its factorization.

20110211110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166071762.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20110211110002 its reverse (20001111201102), we get a palindrome (40111322311104).

The spelling of 20110211110002 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, one hundred ten thousand, two".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 1326 15166071727 30332143454 45498215181 90996430362 197158932451 257823219359 394317864902 515646438718 591476797353 773469658077 1182953594706 1546939316154 3351701851667 6703403703334 10055105555001 20110211110002