Search a number
-
+
20302022031231 = 310495696447733
BaseRepresentation
bin1001001110110111011101…
…10011111011011101111111
32122212212001211012100210110
410213123232303323131333
510130112020114444411
6111102341542241103
74163526013645113
oct447335663733577
978785054170713
1020302022031231
116518048189326
12233a802126193
13b4361b001815
145028a1b51743
1525317ed0a2a6
hex1276eecfb77f

20302022031231 has 8 divisors (see below), whose sum is σ = 27069392697520. Its totient is φ = 13534666359552.

The previous prime is 20302022031211. The next prime is 20302022031307. The reversal of 20302022031231 is 13213022020302.

It is a happy number.

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

It is not a de Polignac number, because 20302022031231 - 214 = 20302022014847 is a prime.

It is a super-2 number, since 2×203020220312312 (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 = 20302022031198 and 20302022031207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302022031211) 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, 75160 + ... + 6372573.

It is an arithmetic number, because the mean of its divisors is an integer number (3383674087190).

Almost surely, 220302022031231 is an apocalyptic number.

20302022031231 is a deficient number, since it is larger than the sum of its proper divisors (6767370666289).

20302022031231 is a wasteful number, since it uses less digits than its factorization.

20302022031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497305.

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

Adding to 20302022031231 its reverse (13213022020302), we get a palindrome (33515044051533).

The spelling of 20302022031231 in words is "twenty trillion, three hundred two billion, twenty-two million, thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 1049569 3148707 6447733 19343199 6767340677077 20302022031231