Search a number
-
+
21313200311303 = 472101272158087
BaseRepresentation
bin1001101100010010111011…
…01110111100110000000111
32210110112002120112020210112
410312021131232330300013
510243143413234430203
6113155052110143235
74326553654343015
oct466113556746007
983415076466715
1021313200311303
116877971a3a50a
1224827837b1b1b
13bb7a98115a64
145397c89d58b5
1526e612ac96d8
hex13625dbbcc07

21313200311303 has 8 divisors (see below), whose sum is σ = 21766786332672. Its totient is φ = 20859619026456.

The previous prime is 21313200311203. The next prime is 21313200311317. The reversal of 21313200311303 is 30311300231312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-21313200311303 is a prime.

It is a super-2 number, since 2×213132003113032 (a number of 27 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 (21313200311203) 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, 8796926 + ... + 10955012.

It is an arithmetic number, because the mean of its divisors is an integer number (2720848291584).

Almost surely, 221313200311303 is an apocalyptic number.

21313200311303 is a deficient number, since it is larger than the sum of its proper divisors (453586021369).

21313200311303 is a wasteful number, since it uses less digits than its factorization.

21313200311303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368261.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21313200311303 its reverse (30311300231312), we get a palindrome (51624500542615).

The spelling of 21313200311303 in words is "twenty-one trillion, three hundred thirteen billion, two hundred million, three hundred eleven thousand, three hundred three".

Divisors: 1 47 210127 2158087 9875969 101430089 453472347049 21313200311303