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105668253738 = 23212750599137
BaseRepresentation
bin110001001101001010…
…0011001100000101010
3101002202012110110121100
41202122110121200222
53212402033104423
6120313205222230
710430362223415
oct1423224314052
9332665413540
10105668253738
11408a4a7a023
1218590101976
139c6cc43938
145185b94b7c
152b36b92343
hex189a51982a

105668253738 has 48 divisors (see below), whose sum is σ = 230821493760. Its totient is φ = 34934675328.

The previous prime is 105668253731. The next prime is 105668253749. The reversal of 105668253738 is 837352866501.

105668253738 is a `hidden beast` number, since 1 + 0 + 566 + 8 + 2 + 5 + 3 + 73 + 8 = 666.

It is a super-2 number, since 2×1056682537382 (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (105668253731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11560306 + ... + 11569442.

It is an arithmetic number, because the mean of its divisors is an integer number (4808781120).

Almost surely, 2105668253738 is an apocalyptic number.

105668253738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

105668253738 is an abundant number, since it is smaller than the sum of its proper divisors (125153240022).

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

105668253738 is a wasteful number, since it uses less digits than its factorization.

105668253738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14331 (or 14328 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 105668253738 in words is "one hundred five billion, six hundred sixty-eight million, two hundred fifty-three thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 9 18 127 254 381 762 1143 2286 5059 9137 10118 15177 18274 27411 30354 45531 54822 82233 91062 164466 642493 1160399 1284986 1927479 2320798 3481197 3854958 5782437 6962394 10443591 11564874 20887182 46224083 92448166 138672249 277344498 416016747 832033494 5870458541 11740917082 17611375623 35222751246 52834126869 105668253738