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105511044325 = 5231971797841
BaseRepresentation
bin110001001000011110…
…0101100010011100101
3101002100020122101211111
41202100330230103211
53212041311404300
6120245431505021
710423443036061
oct1422074542345
9332306571744
10105511044325
1140824263295
1218547528171
139c464bc40b
14516cd50aa1
152b27e8b9ba
hex1890f2c4e5

105511044325 has 48 divisors (see below), whose sum is σ = 137226216960. Its totient is φ = 80381952000.

The previous prime is 105511044293. The next prime is 105511044367. The reversal of 105511044325 is 523440115501.

It is not a de Polignac number, because 105511044325 - 25 = 105511044293 is a prime.

It is a super-2 number, since 2×1055110443252 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 13452405 + ... + 13460245.

It is an arithmetic number, because the mean of its divisors is an integer number (2858879520).

Almost surely, 2105511044325 is an apocalyptic number.

It is an amenable number.

105511044325 is a deficient number, since it is larger than the sum of its proper divisors (31715172635).

105511044325 is a wasteful number, since it uses less digits than its factorization.

105511044325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8158 (or 8153 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 105511044325 its reverse (523440115501), we get a palindrome (628951159826).

The spelling of 105511044325 in words is "one hundred five billion, five hundred eleven million, forty-four thousand, three hundred twenty-five".

Divisors: 1 5 25 31 97 155 179 485 775 895 2425 3007 4475 5549 7841 15035 17363 27745 39205 75175 86815 138725 196025 243071 434075 538253 760577 1215355 1403539 2691265 3802885 6076775 7017695 13456325 19014425 23577887 35088475 43509709 117889435 136143283 217548545 589447175 680716415 1087742725 3403582075 4220441773 21102208865 105511044325