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7125066 = 2321330449
BaseRepresentation
bin11011001011100001001010
3111101222202100
4123023201022
53311000231
6412414230
7114363534
oct33134112
914358670
107125066
114027193
122477376
131626120
14d36854
1595b1e6
hex6cb84a

7125066 has 24 divisors (see below), whose sum is σ = 16625700. Its totient is φ = 2192256.

The previous prime is 7125061. The next prime is 7125067. The reversal of 7125066 is 6605217.

It can be written as a sum of positive squares in 2 ways, for example, as 5978025 + 1147041 = 2445^2 + 1071^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7125061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14991 + ... + 15458.

Almost surely, 27125066 is an apocalyptic number.

7125066 is an abundant number, since it is smaller than the sum of its proper divisors (9500634).

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

7125066 is a wasteful number, since it uses less digits than its factorization.

7125066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30470 (or 30467 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 7125066 is about 2669.2819259119. The cubic root of 7125066 is about 192.4256507166.

It can be divided in two parts, 712 and 5066, that added together give a triangular number (5778 = T107).

The spelling of 7125066 in words is "seven million, one hundred twenty-five thousand, sixty-six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 30449 60898 91347 182694 274041 395837 548082 791674 1187511 2375022 3562533 7125066