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145430045 = 534983341
BaseRepresentation
bin10001010101100…
…01011000011101
3101010122121111222
420222301120131
5244212230140
622233023125
73414064205
oct1052613035
9333577458
10145430045
1175100822
1240854aa5
132418baa7
1415459405
15cb7a5b5
hex8ab161d

145430045 has 8 divisors (see below), whose sum is σ = 175018200. Its totient is φ = 116009280.

The previous prime is 145430011. The next prime is 145430059. The reversal of 145430045 is 540034541.

It can be written as a sum of positive squares in 4 ways, for example, as 56957209 + 88472836 = 7547^2 + 9406^2 .

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

It is not a de Polignac number, because 145430045 - 26 = 145429981 is a prime.

It is a super-2 number, since 2×1454300452 = 42299795977404050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145429996 and 145430023.

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, 39926 + ... + 43415.

It is an arithmetic number, because the mean of its divisors is an integer number (21877275).

Almost surely, 2145430045 is an apocalyptic number.

It is an amenable number.

145430045 is a deficient number, since it is larger than the sum of its proper divisors (29588155).

145430045 is an equidigital number, since it uses as much as digits as its factorization.

145430045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83695.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 145430045 is about 12059.4380051477. The cubic root of 145430045 is about 525.8776491632.

Adding to 145430045 its reverse (540034541), we get a palindrome (685464586).

The spelling of 145430045 in words is "one hundred forty-five million, four hundred thirty thousand, forty-five".

Divisors: 1 5 349 1745 83341 416705 29086009 145430045