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18073084050025 = 52592144112
BaseRepresentation
bin1000001101111111101111…
…10000010011101001101001
32100222202210022011001212021
410012333313300103221221
54332102134004100100
6102234354333544441
73543510604500634
oct406776760235151
970882708131767
1018073084050025
11583882a8667a4
12203a827345121
13a113910c91a4
14466a55c28c1b
152151c8111a1a
hex106ff7c13a69

18073084050025 has 27 divisors (see below), whose sum is σ = 22798485314743. Its totient is φ = 14212422184400.

The previous prime is 18073084049957. The next prime is 18073084050037. The reversal of 18073084050025 is 52005048037081.

The square root of 18073084050025 is 4251245.

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

It can be written as a sum of positive squares in only one way, i.e., 6506310258009 + 11566773792016 = 2550747^2 + 3400996^2 .

It is not a de Polignac number, because 18073084050025 - 29 = 18073084049513 is a prime.

It is a Duffinian number.

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, 1254110070 + ... + 1254124480.

Almost surely, 218073084050025 is an apocalyptic number.

18073084050025 is the 4251245-th square number.

18073084050025 is the 2125623-rd centered octagonal number.

It is an amenable number.

18073084050025 is a deficient number, since it is larger than the sum of its proper divisors (4725401264718).

18073084050025 is an frugal number, since it uses more digits than its factorization.

18073084050025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28950 (or 14475 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 18073084050025 in words is "eighteen trillion, seventy-three billion, eighty-four million, fifty thousand, twenty-five".

Divisors: 1 5 25 59 295 1475 3481 14411 17405 72055 87025 360275 850249 4251245 21256225 50164691 207676921 250823455 1038384605 1254117275 5191923025 12252938339 61264691695 306323458475 722923362001 3614616810005 18073084050025