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301221032120213 = 3172724134882129
BaseRepresentation
bin100010001111101010111110…
…0100111100100111110010101
31110111112110010122022002211212
41010133111330213210332111
5303440201133210321323
62544351010512111205
7120306333660316622
oct10437257447447625
91414473118262755
10301221032120213
1187a841388a7847
122994a7a2235505
13cc1003816c66a
145455266355349
1524c56b4bddb78
hex111f57c9e4f95

301221032120213 has 8 divisors (see below), whose sum is σ = 302182357376280. Its totient is φ = 300259776683520.

The previous prime is 301221032120189. The next prime is 301221032120249. The reversal of 301221032120213 is 312021230122103.

It can be written as a sum of positive squares in 4 ways, for example, as 68032770247204 + 233188261873009 = 8248198^2 + 15270503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 301221032120213 - 226 = 301220965011349 is a prime.

It is a super-2 number, since 2×3012210321202132 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301221032120513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8805668 + ... + 26076461.

It is an arithmetic number, because the mean of its divisors is an integer number (37772794672035).

Almost surely, 2301221032120213 is an apocalyptic number.

It is an amenable number.

301221032120213 is a deficient number, since it is larger than the sum of its proper divisors (961325256067).

301221032120213 is a wasteful number, since it uses less digits than its factorization.

301221032120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34909687.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 301221032120213 its reverse (312021230122103), we get a palindrome (613242262242316).

The spelling of 301221032120213 in words is "three hundred one trillion, two hundred twenty-one billion, thirty-two million, one hundred twenty thousand, two hundred thirteen".

Divisors: 1 317 27241 8635397 34882129 11057634893 950224076089 301221032120213