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105111353020 = 22519129179433
BaseRepresentation
bin110000111100100011…
…1111111011010111100
3101001022101112222102211
41201321013333122330
53210232001244040
6120142033030204
710410520521232
oct1417107773274
9331271488384
10105111353020
11406396892a3
12184556b5364
139bb175849b
145131c2a952
152b02d398ea
hex18791ff6bc

105111353020 has 48 divisors (see below), whose sum is σ = 221989114368. Its totient is φ = 41805642240.

The previous prime is 105111353003. The next prime is 105111353027. The reversal of 105111353020 is 20353111501.

It is a super-2 number, since 2×1051113530202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105111352982 and 105111353000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105111353027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11138224 + ... + 11147656.

It is an arithmetic number, because the mean of its divisors is an integer number (4624773216).

Almost surely, 2105111353020 is an apocalyptic number.

105111353020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105111353020 is an abundant number, since it is smaller than the sum of its proper divisors (116877761348).

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

105111353020 is a wasteful number, since it uses less digits than its factorization.

105111353020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12550 (or 12548 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 105111353020 its reverse (20353111501), we get a palindrome (125464464521).

The spelling of 105111353020 in words is "one hundred five billion, one hundred eleven million, three hundred fifty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 191 382 764 955 1910 2917 3820 5834 9433 11668 14585 18866 29170 37732 47165 58340 94330 188660 557147 1114294 1801703 2228588 2785735 3603406 5571470 7206812 9008515 11142940 18017030 27516061 36034060 55032122 110064244 137580305 275160610 550321220 5255567651 10511135302 21022270604 26277838255 52555676510 105111353020