Search a number
-
+
30680492112861 = 3263293896914797
BaseRepresentation
bin1101111100111010110111…
…10101010111101111011101
311000122000201020122210220120
412332131123311113233131
513010132121440102421
6145130231250505153
76314410124043213
oct676353365275735
9130560636583816
1030680492112861
119859583a60378
1235361028951b9
1314172091546b6
14780d2d8aacb3
1538310b4218c6
hex1be75bd57bdd

30680492112861 has 32 divisors (see below), whose sum is σ = 41210389059840. Its totient is φ = 20302712308224.

The previous prime is 30680492112841. The next prime is 30680492112871. The reversal of 30680492112861 is 16821129408603.

It is not a de Polignac number, because 30680492112861 - 215 = 30680492080093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30680492112841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2073419115 + ... + 2073433911.

It is an arithmetic number, because the mean of its divisors is an integer number (1287824658120).

Almost surely, 230680492112861 is an apocalyptic number.

It is an amenable number.

30680492112861 is a deficient number, since it is larger than the sum of its proper divisors (10529896946979).

30680492112861 is a wasteful number, since it uses less digits than its factorization.

30680492112861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24325.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 30680492112861 in words is "thirty trillion, six hundred eighty billion, four hundred ninety-two million, one hundred twelve thousand, eight hundred sixty-one".

Divisors: 1 3 263 293 789 879 8969 14797 26907 44391 77059 231177 2358847 2627917 3891611 4335521 7076541 7883751 11674833 13006563 132714293 398142879 691142171 1140242023 2073426513 3420726069 34903859059 38885287849 104711577177 116655863547 10226830704287 30680492112861