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105455025423 = 32112943185223
BaseRepresentation
bin110001000110110011…
…0111111110100001111
3101002012100020100100100
41202031212333310033
53211432441303143
6120240111102143
710422162632466
oct1421546776417
9332170210310
10105455025423
11407a5681480
1218530811953
139c37a07537
14516572b9dd
152b230c36d3
hex188d9bfd0f

105455025423 has 48 divisors (see below), whose sum is σ = 172302474240. Its totient is φ = 61564372800.

The previous prime is 105455025419. The next prime is 105455025469. The reversal of 105455025423 is 324520554501.

105455025423 is a `hidden beast` number, since 1 + 0 + 54 + 550 + 2 + 54 + 2 + 3 = 666.

It is not a de Polignac number, because 105455025423 - 22 = 105455025419 is a prime.

It is a super-2 number, since 2×1054550254232 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105455023423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1194790 + ... + 1280012.

It is an arithmetic number, because the mean of its divisors is an integer number (3589634880).

Almost surely, 2105455025423 is an apocalyptic number.

105455025423 is a deficient number, since it is larger than the sum of its proper divisors (66847448817).

105455025423 is a wasteful number, since it uses less digits than its factorization.

105455025423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85700 (or 85697 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 105455025423 its reverse (324520554501), we get a palindrome (429975579924).

The spelling of 105455025423 in words is "one hundred five billion, four hundred fifty-five million, twenty-five thousand, four hundred twenty-three".

Divisors: 1 3 9 11 29 33 87 99 261 319 431 957 1293 2871 3879 4741 12499 14223 37497 42669 85223 112491 137489 255669 412467 767007 937453 1237401 2471467 2812359 7414401 8437077 22243203 27186137 36731113 81558411 110193339 244675233 330580017 404042243 1065202277 1212126729 3195606831 3636380187 9586820493 11717225047 35151675141 105455025423