Search a number
-
+
20332321131 = 373809114761
BaseRepresentation
bin10010111011111001…
…101001100101101011
31221110222211221010210
4102323321221211223
5313120033234011
613201320112203
71316565610113
oct227371514553
957428757123
1020332321131
118694079891
123b35305663
131bc04b1065
14dac4b0043
157e00116a6
hex4bbe6996b

20332321131 has 16 divisors (see below), whose sum is σ = 27515337120. Its totient is φ = 13352555520.

The previous prime is 20332321127. The next prime is 20332321171. The reversal of 20332321131 is 13112323302.

It is not a de Polignac number, because 20332321131 - 22 = 20332321127 is a prime.

It is a super-2 number, since 2×203323211312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20332321098 and 20332321107.

It is not an unprimeable number, because it can be changed into a prime (20332321171) 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, 119791 + ... + 234551.

It is an arithmetic number, because the mean of its divisors is an integer number (1719708570).

Almost surely, 220332321131 is an apocalyptic number.

20332321131 is a deficient number, since it is larger than the sum of its proper divisors (7183015989).

20332321131 is a wasteful number, since it uses less digits than its factorization.

20332321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115646.

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

Adding to 20332321131 its reverse (13112323302), we get a palindrome (33444644433).

The spelling of 20332321131 in words is "twenty billion, three hundred thirty-two million, three hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 3 73 219 809 2427 59057 114761 177171 344283 8377553 25132659 92841649 278524947 6777440377 20332321131