Search a number
-
+
30857004409 = 7113176116987
BaseRepresentation
bin11100101111001110…
…001000010101111001
32221122110220020102011
4130233032020111321
51001143343120114
622101524405521
72141444131660
oct345716102571
987573806364
1030857004409
11120a4a7a140
125b91b468a1
132ba9ab65ba
1416ca1b1dd7
15c08eb11c4
hex72f388579

30857004409 has 32 divisors (see below), whose sum is σ = 39766597632. Its totient is φ = 23236848000.

The previous prime is 30857004389. The next prime is 30857004413. The reversal of 30857004409 is 90440075803.

It is a cyclic number.

It is not a de Polignac number, because 30857004409 - 219 = 30856480121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30857004439) 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, 1808014 + ... + 1825000.

It is an arithmetic number, because the mean of its divisors is an integer number (1242706176).

Almost surely, 230857004409 is an apocalyptic number.

It is an amenable number.

30857004409 is a deficient number, since it is larger than the sum of its proper divisors (8909593223).

30857004409 is a wasteful number, since it uses less digits than its factorization.

30857004409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17797.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 30857004409 in words is "thirty billion, eight hundred fifty-seven million, four thousand, four hundred nine".

Divisors: 1 7 11 31 77 217 341 761 2387 5327 8371 16987 23591 58597 118909 165137 186857 259501 526597 1307999 1816507 3686179 5792567 12927107 40547969 90489749 142198177 400740317 995387239 2805182219 4408143487 30857004409