Search a number
-
+
30794387454 = 23237292715797
BaseRepresentation
bin11100101011011111…
…010000111111111110
32221111010001222002200
4130223133100333332
51001031330344304
622051410332330
72140053655155
oct345337207776
987433058080
1030794387454
11120726a1096
125b74b8a0a6
132b99b3144c
1416c1b5259c
15c03742e39
hex72b7d0ffe

30794387454 has 48 divisors (see below), whose sum is σ = 68552198208. Its totient is φ = 9983324736.

The previous prime is 30794387423. The next prime is 30794387471. The reversal of 30794387454 is 45478349703.

30794387454 is a `hidden beast` number, since 3 + 0 + 79 + 43 + 87 + 454 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 30794387454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1941484 + ... + 1957280.

It is an arithmetic number, because the mean of its divisors is an integer number (1428170796).

Almost surely, 230794387454 is an apocalyptic number.

30794387454 is an abundant number, since it is smaller than the sum of its proper divisors (37757810754).

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

30794387454 is a wasteful number, since it uses less digits than its factorization.

30794387454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18769 (or 18766 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 30794387454 in words is "thirty billion, seven hundred ninety-four million, three hundred eighty-seven thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 2927 5854 8781 15797 17562 26343 31594 47391 52686 94782 108299 142173 216598 284346 324897 584489 649794 974691 1168978 1753467 1949382 3506934 5260401 10520802 46237819 92475638 138713457 277426914 416140371 832280742 1710799303 3421598606 5132397909 10264795818 15397193727 30794387454