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105555322201 = 7279157173683
BaseRepresentation
bin110001001001110010…
…1100110010101011001
3101002110022221221122211
41202103211212111121
53212134130302301
6120254052515121
710424521302100
oct1422345462531
9332408857584
10105555322201
114084725597a
121855a31baa1
139c52723144
145174b99037
152b2bcd6051
hex1893966559

105555322201 has 24 divisors (see below), whose sum is σ = 125135848320. Its totient is φ = 88761228192.

The previous prime is 105555322189. The next prime is 105555322207. The reversal of 105555322201 is 102223555501.

It is not a de Polignac number, because 105555322201 - 217 = 105555191129 is a prime.

It is a super-2 number, since 2×1055553222012 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105555322207) 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, 520906 + ... + 694588.

It is an arithmetic number, because the mean of its divisors is an integer number (5213993680).

Almost surely, 2105555322201 is an apocalyptic number.

It is an amenable number.

105555322201 is a deficient number, since it is larger than the sum of its proper divisors (19580526119).

105555322201 is a wasteful number, since it uses less digits than its factorization.

105555322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173933 (or 173926 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 105555322201 its reverse (102223555501), we get a palindrome (207778877702).

The spelling of 105555322201 in words is "one hundred five billion, five hundred fifty-five million, three hundred twenty-two thousand, two hundred one".

Divisors: 1 7 49 79 157 553 1099 3871 7693 12403 86821 173683 607747 1215781 8510467 13720957 27268231 96046699 190877617 672326893 1336143319 2154190249 15079331743 105555322201