Search a number
-
+
20310200330031 = 35611370181497
BaseRepresentation
bin1001001111000110101100…
…10001101010011100101111
32122220122011210002222200000
410213203112101222130233
510130230242241030111
6111110213251435343
74164235461226623
oct447432621523457
978818153088600
1020310200330031
116520564667257
122340304bb5b53
13b44322471391
14503039d8d183
152534accc4c56
hex1278d646a72f

20310200330031 has 24 divisors (see below), whose sum is σ = 30922256046864. Its totient is φ = 13318164141120.

The previous prime is 20310200329931. The next prime is 20310200330047. The reversal of 20310200330031 is 13003300201302.

20310200330031 is a `hidden beast` number, since 2 + 0 + 310 + 20 + 0 + 3 + 300 + 31 = 666.

It is not a de Polignac number, because 20310200330031 - 215 = 20310200297263 is a prime.

It is a super-2 number, since 2×203102003300312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20310200329986 and 20310200330013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310200330081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 685075926 + ... + 685105571.

It is an arithmetic number, because the mean of its divisors is an integer number (1288427335286).

Almost surely, 220310200330031 is an apocalyptic number.

20310200330031 is a deficient number, since it is larger than the sum of its proper divisors (10612055716833).

20310200330031 is an equidigital number, since it uses as much as digits as its factorization.

20310200330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370181573 (or 1370181561 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20310200330031 its reverse (13003300201302), we get a palindrome (33313500531333).

The spelling of 20310200330031 in words is "twenty trillion, three hundred ten billion, two hundred million, three hundred thirty thousand, thirty-one".

Divisors: 1 3 9 27 61 81 183 243 549 1647 4941 14823 1370181497 4110544491 12331633473 36994900419 83581071317 110984701257 250743213951 332954103771 752229641853 2256688925559 6770066776677 20310200330031