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145030301 = 1311156177
BaseRepresentation
bin10001010010011…
…11110010011101
3101002220022011122
420221033302131
5244111432201
622220300325
73410510603
oct1051176235
9332808148
10145030301
1174958459
12406a16a5
132407bb60
1415393873
15caebe1b
hex8a4fc9d

145030301 has 4 divisors (see below), whose sum is σ = 156186492. Its totient is φ = 133874112.

The previous prime is 145030279. The next prime is 145030331. The reversal of 145030301 is 103030541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103030541 = 193533837.

It can be written as a sum of positive squares in 2 ways, for example, as 6497401 + 138532900 = 2549^2 + 11770^2 .

It is a cyclic number.

It is not a de Polignac number, because 145030301 - 222 = 140835997 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145030301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145030331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5578076 + ... + 5578101.

It is an arithmetic number, because the mean of its divisors is an integer number (39046623).

Almost surely, 2145030301 is an apocalyptic number.

It is an amenable number.

145030301 is a deficient number, since it is larger than the sum of its proper divisors (11156191).

145030301 is a wasteful number, since it uses less digits than its factorization.

145030301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11156190.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 145030301 is about 12042.8526936104. The cubic root of 145030301 is about 525.3953798651.

Adding to 145030301 its reverse (103030541), we get a palindrome (248060842).

The spelling of 145030301 in words is "one hundred forty-five million, thirty thousand, three hundred one".

Divisors: 1 13 11156177 145030301