Search a number
-
+
30724262647 = 1324164115299
BaseRepresentation
bin11100100111010011…
…110000101011110111
32221022020010020221121
4130213103300223313
51000410402401042
622040423324411
72135242631521
oct344723605367
987266106847
1030724262647
1112037055301
125b555b0707
132b8844ab90
1416b66daa11
15bec4e0367
hex7274f0af7

30724262647 has 16 divisors (see below), whose sum is σ = 33278968800. Its totient is φ = 28197273600.

The previous prime is 30724262627. The next prime is 30724262651. The reversal of 30724262647 is 74626242703.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30724262647 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 (30724262627) 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, 2000604 + ... + 2015902.

It is an arithmetic number, because the mean of its divisors is an integer number (2079935550).

Almost surely, 230724262647 is an apocalyptic number.

30724262647 is a deficient number, since it is larger than the sum of its proper divisors (2554706153).

30724262647 is a wasteful number, since it uses less digits than its factorization.

30724262647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194.

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 30724262647 in words is "thirty billion, seven hundred twenty-four million, two hundred sixty-two thousand, six hundred forty-seven".

Divisors: 1 13 241 641 3133 8333 15299 154481 198887 2008253 3687059 9806659 47931767 127486567 2363404819 30724262647