Search a number
-
+
30527234747 = 1779831371999
BaseRepresentation
bin11100011011100100…
…001010001010111011
32220210111101012110222
4130123210022022323
51000004433002442
622005104330255
72130331133252
oct343344121273
986714335428
1030527234747
1111a45912329
125abb61398b
132b56694619
14169848d799
15bda0718d2
hex71b90a2bb

30527234747 has 32 divisors (see below), whose sum is σ = 33384960000. Its totient is φ = 27807556608.

The previous prime is 30527234719. The next prime is 30527234767. The reversal of 30527234747 is 74743272503.

It is a happy number.

It is not a de Polignac number, because 30527234747 - 214 = 30527218363 is a prime.

It is a super-2 number, since 2×305272347472 (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30527234698 and 30527234707.

It is not an unprimeable number, because it can be changed into a prime (30527234767) 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, 15270254 + ... + 15272252.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280000).

Almost surely, 230527234747 is an apocalyptic number.

30527234747 is a deficient number, since it is larger than the sum of its proper divisors (2857725253).

30527234747 is a wasteful number, since it uses less digits than its factorization.

30527234747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315.

The product of its (nonzero) digits is 987840, while the sum is 44.

The spelling of 30527234747 in words is "thirty billion, five hundred twenty-seven million, two hundred thirty-four thousand, seven hundred forty-seven".

Divisors: 1 17 79 83 137 1343 1411 1999 2329 6557 10823 11371 33983 111469 157921 165917 183991 193307 273863 898309 2684657 2820589 4655671 13107443 15271253 21635177 22730629 222826531 367798009 386420693 1795719691 30527234747