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1300145 = 57112307
BaseRepresentation
bin100111101011010110001
32110001110112
410331122301
5313101040
643511105
714023340
oct4753261
92401415
101300145
11808900
12528495
13366a22
1425bb57
151aa365
hex13d6b1

1300145 has 24 divisors (see below), whose sum is σ = 1966272. Its totient is φ = 807840.

The previous prime is 1300141. The next prime is 1300147. The reversal of 1300145 is 5410031.

It is not a de Polignac number, because 1300145 - 22 = 1300141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1300141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4082 + ... + 4388.

It is an arithmetic number, because the mean of its divisors is an integer number (81928).

21300145 is an apocalyptic number.

It is an amenable number.

1300145 is a deficient number, since it is larger than the sum of its proper divisors (666127).

1300145 is a wasteful number, since it uses less digits than its factorization.

1300145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1300145 is about 1140.2390100325. The cubic root of 1300145 is about 109.1433458980.

Adding to 1300145 its reverse (5410031), we get a palindrome (6710176).

The spelling of 1300145 in words is "one million, three hundred thousand, one hundred forty-five".

Divisors: 1 5 7 11 35 55 77 121 307 385 605 847 1535 2149 3377 4235 10745 16885 23639 37147 118195 185735 260029 1300145