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120550045 = 57211411091
BaseRepresentation
bin1110010111101…
…11001010011101
322101211120120111
413023313022131
5221330100140
615543450021
72662441600
oct713671235
9271746514
10120550045
1162058040
1234456911
131bc8a3b5
1412020337
15a8b37ea
hex72f729d

120550045 has 48 divisors (see below), whose sum is σ = 188225856. Its totient is φ = 73248000.

The previous prime is 120549983. The next prime is 120550049. The reversal of 120550045 is 540055021.

It is not a de Polignac number, because 120550045 - 213 = 120541853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120549998 and 120550025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120550049) 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 47 ways as a sum of consecutive naturals, for example, 109950 + ... + 111040.

It is an arithmetic number, because the mean of its divisors is an integer number (3921372).

Almost surely, 2120550045 is an apocalyptic number.

It is an amenable number.

120550045 is a deficient number, since it is larger than the sum of its proper divisors (67675811).

120550045 is a wasteful number, since it uses less digits than its factorization.

120550045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 120550045 is about 10979.5284507123. The cubic root of 120550045 is about 493.9948927772.

The spelling of 120550045 in words is "one hundred twenty million, five hundred fifty thousand, forty-five".

Divisors: 1 5 7 11 35 41 49 55 77 205 245 287 385 451 539 1091 1435 2009 2255 2695 3157 5455 7637 10045 12001 15785 22099 38185 44731 53459 60005 84007 110495 223655 267295 313117 420035 492041 588049 1565585 2191819 2460205 2940245 3444287 10959095 17221435 24110009 120550045