Search a number
-
+
21230032301013 = 313251195340409
BaseRepresentation
bin1001101001111000000001…
…00010001010101111010101
32210011120102110020120200010
410310330000202022233111
510240313101232113023
6113052535303110433
74320550664044554
oct464740042125725
983146373216603
1021230032301013
11684567384a408
12246a632a42419
13bacca2862c53
145357791dbd9b
1526c39642b093
hex134f0088abd5

21230032301013 has 8 divisors (see below), whose sum is σ = 28306736396800. Its totient is φ = 14153341536288.

The previous prime is 21230032301011. The next prime is 21230032301047. The reversal of 21230032301013 is 31010323003212.

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

It is not a de Polignac number, because 21230032301013 - 21 = 21230032301011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230032301011) 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, 1305153 + ... + 6645561.

It is an arithmetic number, because the mean of its divisors is an integer number (3538342049600).

Almost surely, 221230032301013 is an apocalyptic number.

It is an amenable number.

21230032301013 is a deficient number, since it is larger than the sum of its proper divisors (7076704095787).

21230032301013 is a wasteful number, since it uses less digits than its factorization.

21230032301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665531.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21230032301013 its reverse (31010323003212), we get a palindrome (52240355304225).

The spelling of 21230032301013 in words is "twenty-one trillion, two hundred thirty billion, thirty-two million, three hundred one thousand, thirteen".

Divisors: 1 3 1325119 3975357 5340409 16021227 7076677433671 21230032301013