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451000105 = 5312128901
BaseRepresentation
bin11010111000011…
…011011100101001
31011102122011211121
4122320123130221
51410424000410
6112430255241
714114303053
oct3270333451
91142564747
10451000105
1121163a066
12107057521
1372589c8a
1443c7c8d3
15298d99da
hex1ae1b729

451000105 has 8 divisors (see below), whose sum is σ = 541392264. Its totient is φ = 360672000.

The previous prime is 451000103. The next prime is 451000117. The reversal of 451000105 is 501000154.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46949904 + 404050201 = 6852^2 + 20101^2 .

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

It is not a de Polignac number, because 451000105 - 21 = 451000103 is a prime.

It is a super-2 number, since 2×4510001052 = 406802189420022050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451000103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155 + ... + 30055.

It is an arithmetic number, because the mean of its divisors is an integer number (67674033).

Almost surely, 2451000105 is an apocalyptic number.

It is an amenable number.

451000105 is a deficient number, since it is larger than the sum of its proper divisors (90392159).

451000105 is a wasteful number, since it uses less digits than its factorization.

451000105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32027.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 451000105 is about 21236.7630537236. The cubic root of 451000105 is about 766.8767085706.

Adding to 451000105 its reverse (501000154), we get a palindrome (952000259).

The spelling of 451000105 in words is "four hundred fifty-one million, one hundred five", and thus it is an aban number.

Divisors: 1 5 3121 15605 28901 144505 90200021 451000105