Search a number
-
+
20032021302231 = 3431399110998561
BaseRepresentation
bin1001000111000000100011…
…00000111000101111010111
32121221001011000012012102110
410203200101200320233113
510111201034423132411
6110334330013442103
74135160106424101
oct443402140705727
977831130165373
1020032021302231
116423594878384
1222b640b4a0333
13b2401c371253
144d37aad08571
1524b12b17e2a6
hex123811838bd7

20032021302231 has 16 divisors (see below), whose sum is σ = 27350045676800. Its totient is φ = 13034782897920.

The previous prime is 20032021302211. The next prime is 20032021302253. The reversal of 20032021302231 is 13220312023002.

It is a happy number.

It is not a de Polignac number, because 20032021302231 - 219 = 20032020777943 is a prime.

It is a super-2 number, since 2×200320213022312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20032021302198 and 20032021302207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032021302211) 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, 55318810 + ... + 55679751.

It is an arithmetic number, because the mean of its divisors is an integer number (1709377854800).

Almost surely, 220032021302231 is an apocalyptic number.

20032021302231 is a deficient number, since it is larger than the sum of its proper divisors (7318024374569).

20032021302231 is a wasteful number, since it uses less digits than its factorization.

20032021302231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111000006.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20032021302231 its reverse (13220312023002), we get a palindrome (33252333325233).

The spelling of 20032021302231 in words is "twenty trillion, thirty-two billion, twenty-one million, three hundred two thousand, two hundred thirty-one".

Divisors: 1 3 43 129 1399 4197 60157 180471 110998561 332995683 4772938123 14318814369 155286986839 465860960517 6677340434077 20032021302231