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105254504427 = 3471338155787
BaseRepresentation
bin110001000000110101…
…0000100011111101011
3101001200100220211020210
41202001222010133223
53211030123120202
6120204145152203
710414206345252
oct1420152043753
9331610824223
10105254504427
1140702473046
121849562b663
139c052ca067
145146c51799
152b106b4c6c
hex1881a847eb

105254504427 has 16 divisors (see below), whose sum is σ = 143338563072. Its totient is φ = 68670334560.

The previous prime is 105254504393. The next prime is 105254504441. The reversal of 105254504427 is 724405452501.

It is not a de Polignac number, because 105254504427 - 28 = 105254504171 is a prime.

It is a super-2 number, since 2×1052545044272 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105254504447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1858828 + ... + 1914614.

It is an arithmetic number, because the mean of its divisors is an integer number (8958660192).

Almost surely, 2105254504427 is an apocalyptic number.

105254504427 is a deficient number, since it is larger than the sum of its proper divisors (38084058645).

105254504427 is a wasteful number, since it uses less digits than its factorization.

105254504427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69218.

The product of its (nonzero) digits is 224000, while the sum is 39.

Adding to 105254504427 its reverse (724405452501), we get a palindrome (829659956928).

The spelling of 105254504427 in words is "one hundred five billion, two hundred fifty-four million, five hundred four thousand, four hundred twenty-seven".

Divisors: 1 3 47 141 13381 40143 55787 167361 628907 1886721 2621989 7865967 746485847 2239457541 35084834809 105254504427