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712045 = 5178377
BaseRepresentation
bin10101101110101101101
31100011202001
42231311231
5140241140
623132301
76023635
oct2556555
91304661
10712045
11446a74
122a4091
131bc139
141476c5
15e0e9a
hexadd6d

712045 has 8 divisors (see below), whose sum is σ = 904824. Its totient is φ = 536064.

The previous prime is 712021. The next prime is 712051. The reversal of 712045 is 540217.

It can be written as a sum of positive squares in 4 ways, for example, as 51076 + 660969 = 226^2 + 813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 712045 - 215 = 679277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4104 + ... + 4273.

It is an arithmetic number, because the mean of its divisors is an integer number (113103).

2712045 is an apocalyptic number.

It is an amenable number.

712045 is a deficient number, since it is larger than the sum of its proper divisors (192779).

712045 is a wasteful number, since it uses less digits than its factorization.

712045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8399.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 712045 is about 843.8275890252. The cubic root of 712045 is about 89.2967830849.

It can be divided in two parts, 7120 and 45, that multiplied together give a triangular number (320400 = T800).

The spelling of 712045 in words is "seven hundred twelve thousand, forty-five".

Divisors: 1 5 17 85 8377 41885 142409 712045