Search a number
-
+
30288730429 = 2379831071877
BaseRepresentation
bin11100001101010110…
…010101100100111101
32220011212120221001201
4130031112111210331
5444012403333204
621525304335501
72121403650346
oct341526254475
986155527051
1030288730429
1111933220521
125a53774591
132b191484c9
1416749270cd
15bc415d9a4
hex70d59593d

30288730429 has 32 divisors (see below), whose sum is σ = 32711454720. Its totient is φ = 27981425472.

The previous prime is 30288730393. The next prime is 30288730447. The reversal of 30288730429 is 92403788203.

It is a cyclic number.

It is not a de Polignac number, because 30288730429 - 27 = 30288730301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30288730529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16135839 + ... + 16137715.

It is an arithmetic number, because the mean of its divisors is an integer number (1022232960).

Almost surely, 230288730429 is an apocalyptic number.

It is an amenable number.

30288730429 is a deficient number, since it is larger than the sum of its proper divisors (2422724291).

30288730429 is a wasteful number, since it uses less digits than its factorization.

30288730429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 30288730429 in words is "thirty billion, two hundred eighty-eight million, seven hundred thirty thousand, four hundred twenty-nine".

Divisors: 1 23 79 83 107 1817 1877 1909 2461 6557 8453 8881 43171 148283 150811 155791 194419 200839 204263 701599 3410509 3583193 4619297 12307489 15866281 16136777 16669637 283072247 364924463 383401651 1316901323 30288730429