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1006465 = 51011993
BaseRepresentation
bin11110101101110000001
31220010121111
43311232001
5224201330
633323321
711361205
oct3655601
91803544
101006465
11628199
12406541
13293155
141c2b05
1514d32a
hexf5b81

1006465 has 8 divisors (see below), whose sum is σ = 1220328. Its totient is φ = 796800.

The previous prime is 1006463. The next prime is 1006469. The reversal of 1006465 is 5646001.

It can be written as a sum of positive squares in 4 ways, for example, as 452929 + 553536 = 673^2 + 744^2 .

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

It is not a de Polignac number, because 1006465 - 21 = 1006463 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006463) 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 7 ways as a sum of consecutive naturals, for example, 492 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (152541).

21006465 is an apocalyptic number.

It is an amenable number.

1006465 is a deficient number, since it is larger than the sum of its proper divisors (213863).

1006465 is a wasteful number, since it uses less digits than its factorization.

1006465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1006465 is about 1003.2272922922. The cubic root of 1006465 is about 100.2150372583.

The spelling of 1006465 in words is "one million, six thousand, four hundred sixty-five".

Divisors: 1 5 101 505 1993 9965 201293 1006465