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1301012213 = 1968474327
BaseRepresentation
bin100110110001011…
…1101111011110101
310100200002021020112
41031202331323311
510131024342323
6333033112405
744145264344
oct11542757365
93320067215
101301012213
11608429806
12303858705
13179700917
14c4b05b5b
1579340178
hex4d8bdef5

1301012213 has 4 divisors (see below), whose sum is σ = 1369486560. Its totient is φ = 1232537868.

The previous prime is 1301012203. The next prime is 1301012233. The reversal of 1301012213 is 3122101031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3122101031 = 7446014433.

It is a cyclic number.

It is not a de Polignac number, because 1301012213 - 218 = 1300750069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301012203) 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, 34237145 + ... + 34237182.

It is an arithmetic number, because the mean of its divisors is an integer number (342371640).

Almost surely, 21301012213 is an apocalyptic number.

It is an amenable number.

1301012213 is a deficient number, since it is larger than the sum of its proper divisors (68474347).

1301012213 is an equidigital number, since it uses as much as digits as its factorization.

1301012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68474346.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1301012213 is about 36069.5468920806. The cubic root of 1301012213 is about 1091.6760716423.

Adding to 1301012213 its reverse (3122101031), we get a palindrome (4423113244).

The spelling of 1301012213 in words is "one billion, three hundred one million, twelve thousand, two hundred thirteen".

Divisors: 1 19 68474327 1301012213