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186225045444 = 223271210132
BaseRepresentation
bin1010110101101111100…
…0001010111111000100
3122210200100021111020100
42231123320022333010
511022342102423234
6221314533004100
716311554524434
oct2553370127704
9583610244210
10186225045444
1171a83201a39
1230112483630
131473a5263a9
14902886a2c4
154c9de96399
hex2b5be0afc4

186225045444 has 81 divisors (see below), whose sum is σ = 477930787789. Its totient is φ = 61140303840.

The previous prime is 186225045397. The next prime is 186225045481. The reversal of 186225045444 is 444540522681.

The square root of 186225045444 is 431538.

It is a perfect power (a square), and thus also a powerful number.

186225045444 is a `hidden beast` number, since 1 + 86 + 2 + 25 + 0 + 4 + 544 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 367488900 + 185857556544 = 19170^2 + 431112^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 186225045444.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 183834682 + ... + 183835694.

Almost surely, 2186225045444 is an apocalyptic number.

186225045444 is the 431538-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 186225045444

186225045444 is an abundant number, since it is smaller than the sum of its proper divisors (291705742345).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

186225045444 is an equidigital number, since it uses as much as digits as its factorization.

186225045444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 45.

The spelling of 186225045444 in words is "one hundred eighty-six billion, two hundred twenty-five million, forty-five thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 426 639 852 1013 1278 2026 2556 3039 4052 5041 6078 9117 10082 12156 15123 18234 20164 30246 36468 45369 60492 71923 90738 143846 181476 215769 287692 431538 647307 863076 1026169 1294614 2052338 2589228 3078507 4104676 5106533 6157014 9235521 10213066 12314028 15319599 18471042 20426132 30639198 36942084 45958797 61278396 72857999 91917594 145715998 183835188 218573997 291431996 437147994 655721991 874295988 1311443982 2622887964 5172917929 10345835858 15518753787 20691671716 31037507574 46556261361 62075015148 93112522722 186225045444