Search a number
-
+
321430342424020 = 22516071517121201
BaseRepresentation
bin100100100010101101101010…
…1011000010101010111010100
31120011002102220020000201210221
41021011123111120111113110
5314112303320130032040
63055343021044324124
7124463401346512444
oct11105332530252724
91504072806021727
10321430342424020
119346592a699035
123007342b3a3644
1310a4799c5ba56b
145953450da2124
15272621a56c74a
hex12456d56155d4

321430342424020 has 12 divisors (see below), whose sum is σ = 675003719090484. Its totient is φ = 128572136969600.

The previous prime is 321430342423999. The next prime is 321430342424029. The reversal of 321430342424020 is 20424243034123.

It can be written as a sum of positive squares in 2 ways, for example, as 162123839321796 + 159306503102224 = 12732786^2 + 12621668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321430342424029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8035758560581 + ... + 8035758560620.

It is an arithmetic number, because the mean of its divisors is an integer number (56250309924207).

Almost surely, 2321430342424020 is an apocalyptic number.

It is an amenable number.

321430342424020 is an abundant number, since it is smaller than the sum of its proper divisors (353573376666464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321430342424020 is a wasteful number, since it uses less digits than its factorization.

321430342424020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071517121210 (or 16071517121208 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 321430342424020 its reverse (20424243034123), we get a palindrome (341854585458143).

The spelling of 321430342424020 in words is "three hundred twenty-one trillion, four hundred thirty billion, three hundred forty-two million, four hundred twenty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 16071517121201 32143034242402 64286068484804 80357585606005 160715171212010 321430342424020