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145544411 = 312151451
BaseRepresentation
bin10001010110011…
…01010011011011
3101010212102101202
420223031103123
5244224410121
622235304415
73415051505
oct1053152333
9333772352
10145544411
1175179741
12408ab10b
13241cbb6c
1415488d75
15cb9e40b
hex8acd4db

145544411 has 6 divisors (see below), whose sum is σ = 150391836. Its totient is φ = 140848500.

The previous prime is 145544369. The next prime is 145544419. The reversal of 145544411 is 114445541.

It is not a de Polignac number, because 145544411 - 222 = 141350107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145544419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74765 + ... + 76686.

It is an arithmetic number, because the mean of its divisors is an integer number (25065306).

Almost surely, 2145544411 is an apocalyptic number.

145544411 is a deficient number, since it is larger than the sum of its proper divisors (4847425).

145544411 is an equidigital number, since it uses as much as digits as its factorization.

145544411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151513 (or 151482 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 145544411 is about 12064.1788365392. The cubic root of 145544411 is about 526.0154628792.

Adding to 145544411 its reverse (114445541), we get a palindrome (259989952).

The spelling of 145544411 in words is "one hundred forty-five million, five hundred forty-four thousand, four hundred eleven".

Divisors: 1 31 961 151451 4694981 145544411