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105445207168 = 277379193461
BaseRepresentation
bin110001000110100000…
…1100010110010000000
3101002011122202112020021
41202031001202302000
53211422433112133
6120235120423224
710422013321030
oct1421501426200
9332148675207
10105445207168
11407a0085914
1218529477b14
139c3597a612
1451642d38c0
152b222d452d
hex188d062c80

105445207168 has 128 divisors (see below), whose sum is σ = 246904300800. Its totient is φ = 43908894720.

The previous prime is 105445207163. The next prime is 105445207171. The reversal of 105445207168 is 861702544501.

105445207168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1054452071682 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105445207163) 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, 30464958 + ... + 30468418.

It is an arithmetic number, because the mean of its divisors is an integer number (1928939850).

Almost surely, 2105445207168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105445207168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123452150400).

105445207168 is an abundant number, since it is smaller than the sum of its proper divisors (141459093632).

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

105445207168 is an equidigital number, since it uses as much as digits as its factorization.

105445207168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438 (or 4426 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 105445207168 in words is "one hundred five billion, four hundred forty-five million, two hundred seven thousand, one hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 37 56 64 74 112 128 148 224 259 296 448 518 592 896 919 1036 1184 1838 2072 2368 3461 3676 4144 4736 6433 6922 7352 8288 12866 13844 14704 16576 24227 25732 27688 29408 33152 34003 48454 51464 55376 58816 68006 96908 102928 110752 117632 128057 136012 193816 205856 221504 238021 256114 272024 387632 411712 443008 476042 512228 544048 775264 823424 896399 952084 1024456 1088096 1550528 1792798 1904168 2048912 2176192 3101056 3180659 3585596 3808336 4097824 4352384 6361318 7171192 7616672 8195648 12722636 14342384 15233344 16391296 22264613 25445272 28684768 30466688 44529226 50890544 57369536 89058452 101781088 114739072 117684383 178116904 203562176 235368766 356233808 407124352 470737532 712467616 823790681 941475064 1424935232 1647581362 1882950128 2849870464 3295162724 3765900256 6590325448 7531800512 13180650896 15063601024 26361301792 52722603584 105445207168