Search a number
-
+
1302213220321 = 132915643220811
BaseRepresentation
bin10010111100110001111…
…101001101011111100001
311121111020110220200202011
4102330301331031133201
5132313413041022241
62434121204352521
7163040025511636
oct22746175153741
94544213820664
101302213220321
114622a14613a2
121904646a5741
1395a4b7a7370
14470554a818d
1523d183a4281
hex12f31f4d7e1

1302213220321 has 16 divisors (see below), whose sum is σ = 1450840829760. Its totient is φ = 1160513766720.

The previous prime is 1302213220307. The next prime is 1302213220331. The reversal of 1302213220321 is 1230223122031.

It is a cyclic number.

It is not a de Polignac number, because 1302213220321 - 213 = 1302213212129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302213220292 and 1302213220301.

It is not an unprimeable number, because it can be changed into a prime (1302213220331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5787006 + ... + 6007816.

It is an arithmetic number, because the mean of its divisors is an integer number (90677551860).

Almost surely, 21302213220321 is an apocalyptic number.

It is an amenable number.

1302213220321 is a deficient number, since it is larger than the sum of its proper divisors (148627609439).

1302213220321 is a wasteful number, since it uses less digits than its factorization.

1302213220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236496.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1302213220321 its reverse (1230223122031), we get a palindrome (2532436342352).

The spelling of 1302213220321 in words is "one trillion, three hundred two billion, two hundred thirteen million, two hundred twenty thousand, three hundred twenty-one".

Divisors: 1 13 29 377 15643 203359 220811 453647 2870543 5897411 6403519 83245747 3454146473 44903904149 100170247717 1302213220321