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105214510344 = 233231117170641
BaseRepresentation
bin110000111111101000…
…1100000010100001000
3101001120120122220200110
41201333101200110020
53210434403312334
6120200200034320
710413212403366
oct1417721402410
9331516586613
10105214510344
1140691936989
12184841629a0
139bc9c36118
145141800636
152b0be14ae9
hex187f460508

105214510344 has 64 divisors (see below), whose sum is σ = 274719968640. Its totient is φ = 33516426240.

The previous prime is 105214510339. The next prime is 105214510381. The reversal of 105214510344 is 443015412501.

It is a super-2 number, since 2×1052145103442 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531264 + ... + 701904.

It is an arithmetic number, because the mean of its divisors is an integer number (4292499510).

Almost surely, 2105214510344 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 105214510344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137359984320).

105214510344 is an abundant number, since it is smaller than the sum of its proper divisors (169505458296).

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

105214510344 is a wasteful number, since it uses less digits than its factorization.

105214510344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171790 (or 171786 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 105214510344 its reverse (443015412501), we get a palindrome (548229922845).

The spelling of 105214510344 in words is "one hundred five billion, two hundred fourteen million, five hundred ten thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 1117 2234 3351 4468 6702 8936 13404 25691 26808 51382 77073 102764 154146 170641 205528 308292 341282 511923 616584 682564 1023846 1365128 2047692 3924743 4095384 7849486 11774229 15698972 23548458 31397944 47096916 94193832 190605997 381211994 571817991 762423988 1143635982 1524847976 2287271964 4383937931 4574543928 8767875862 13151813793 17535751724 26303627586 35071503448 52607255172 105214510344