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145130011 = 1311163847
BaseRepresentation
bin10001010011010…
…00001000011011
3101010002100221121
420221220020123
5244123130021
622222350111
73411404365
oct1051501033
9333070847
10145130011
1174a16364
124072b337
13240b5360
14153bbd35
15cb1b741
hex8a6821b

145130011 has 4 divisors (see below), whose sum is σ = 156293872. Its totient is φ = 133966152.

The previous prime is 145129997. The next prime is 145130047. The reversal of 145130011 is 110031541.

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

It is a cyclic number.

It is not a de Polignac number, because 145130011 - 25 = 145129979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145130311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5581911 + ... + 5581936.

It is an arithmetic number, because the mean of its divisors is an integer number (39073468).

Almost surely, 2145130011 is an apocalyptic number.

145130011 is a deficient number, since it is larger than the sum of its proper divisors (11163861).

145130011 is a wasteful number, since it uses less digits than its factorization.

145130011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11163860.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 145130011 is about 12046.9917821836. The cubic root of 145130011 is about 525.5157574045.

Adding to 145130011 its reverse (110031541), we get a palindrome (255161552).

The spelling of 145130011 in words is "one hundred forty-five million, one hundred thirty thousand, eleven".

Divisors: 1 13 11163847 145130011