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1005106469 = 53149127277
BaseRepresentation
bin111011111010001…
…011010100100101
32121001021200212112
4323322023110211
54024301401334
6243422530405
733623156363
oct7372132445
92531250775
101005106469
114763a1404
12240736a05
13130307573
14976ba633
155d38e4ce
hex3be8b525

1005106469 has 8 divisors (see below), whose sum is σ = 1030951800. Its totient is φ = 979516096.

The previous prime is 1005106433. The next prime is 1005106481. The reversal of 1005106469 is 9646015001.

It can be written as a sum of positive squares in 4 ways, for example, as 208455844 + 796650625 = 14438^2 + 28225^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1005106469 is a prime.

It is a super-2 number, since 2×10051064692 = 2020478028051295922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005103469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55742 + ... + 71535.

It is an arithmetic number, because the mean of its divisors is an integer number (128868975).

Almost surely, 21005106469 is an apocalyptic number.

It is an amenable number.

1005106469 is a deficient number, since it is larger than the sum of its proper divisors (25845331).

1005106469 is a wasteful number, since it uses less digits than its factorization.

1005106469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127479.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1005106469 is about 31703.4141536838. The cubic root of 1005106469 is about 1001.6992671888.

The spelling of 1005106469 in words is "one billion, five million, one hundred six thousand, four hundred sixty-nine".

Divisors: 1 53 149 7897 127277 6745681 18964273 1005106469