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1450130905 = 5290026181
BaseRepresentation
bin101011001101111…
…0011110111011001
310202001200021122001
41112123303313121
510432213142110
6355521201001
750635623616
oct12633636731
93661607561
101450130905
116846198a3
12345790161
131a1581632
14da84150d
158749863a
hex566f3dd9

1450130905 has 4 divisors (see below), whose sum is σ = 1740157092. Its totient is φ = 1160104720.

The previous prime is 1450130893. The next prime is 1450130951. The reversal of 1450130905 is 5090310541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 983700496 + 466430409 = 31364^2 + 21597^2 .

It is not a de Polignac number, because 1450130905 - 27 = 1450130777 is a prime.

It is a super-2 number, since 2×14501309052 = 4205759283272238050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145013086 + ... + 145013095.

It is an arithmetic number, because the mean of its divisors is an integer number (435039273).

Almost surely, 21450130905 is an apocalyptic number.

It is an amenable number.

1450130905 is a deficient number, since it is larger than the sum of its proper divisors (290026187).

1450130905 is an equidigital number, since it uses as much as digits as its factorization.

1450130905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290026186.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1450130905 is about 38080.5843573861. The cubic root of 1450130905 is about 1131.8852558531.

It can be divided in two parts, 1450 and 130905, that added together give a triangular number (132355 = T514).

The spelling of 1450130905 in words is "one billion, four hundred fifty million, one hundred thirty thousand, nine hundred five".

Divisors: 1 5 290026181 1450130905