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182572471225 = 529728812
BaseRepresentation
bin1010101000001000101…
…0101101001110111001
3122110020210022111100201
42222002022231032321
510442402023034400
6215512253402201
716122213254134
oct2520212551671
9573223274321
10182572471225
1170479444961
122b473199361
13142a7899281
148b9d71321b
154b3849c06a
hex2a822ad3b9

182572471225 has 27 divisors (see below), whose sum is σ = 229007781831. Its totient is φ = 144388147200.

The previous prime is 182572471201. The next prime is 182572471243. The reversal of 182572471225 is 522174275281.

The square root of 182572471225 is 427285.

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

It can be written as a sum of positive squares in 13 ways, for example, as 172322123689 + 10250347536 = 415117^2 + 101244^2 .

It is not a de Polignac number, because 182572471225 - 227 = 182438253497 is a prime.

It is a super-4 number, since 4×1825724712254 (a number of 46 digits) contains 4444 as substring.

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, 207232785 + ... + 207233665.

Almost surely, 2182572471225 is an apocalyptic number.

182572471225 is the 427285-th square number.

182572471225 is the 213643-rd centered octagonal number.

It is an amenable number.

182572471225 is a deficient number, since it is larger than the sum of its proper divisors (46435310606).

182572471225 is an frugal number, since it uses more digits than its factorization.

182572471225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966 (or 983 counting only the distinct ones).

The product of its digits is 627200, while the sum is 46.

The spelling of 182572471225 in words is "one hundred eighty-two billion, five hundred seventy-two million, four hundred seventy-one thousand, two hundred twenty-five".

Divisors: 1 5 25 97 485 881 2425 4405 9409 22025 47045 85457 235225 427285 776161 2136425 3880805 8289329 19404025 41446645 75287617 207233225 376438085 1882190425 7302898849 36514494245 182572471225