Search a number
-
+
30278348375 = 531122020617
BaseRepresentation
bin11100001100101110…
…101110111001010111
32220011011001110120012
4130030232232321113
5444002224122000
621524254030435
72121216500102
oct341456567127
986134043505
1030278348375
111192837a310
125a501a841b
132b16c51a92
1416733c3739
15bc32ac735
hex70cbaee57

30278348375 has 16 divisors (see below), whose sum is σ = 41222596896. Its totient is φ = 22020616000.

The previous prime is 30278348357. The next prime is 30278348383. The reversal of 30278348375 is 57384387203.

It is not a de Polignac number, because 30278348375 - 26 = 30278348311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11008934 + ... + 11011683.

It is an arithmetic number, because the mean of its divisors is an integer number (2576412306).

Almost surely, 230278348375 is an apocalyptic number.

30278348375 is a deficient number, since it is larger than the sum of its proper divisors (10944248521).

30278348375 is a wasteful number, since it uses less digits than its factorization.

30278348375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22020643 (or 22020633 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 30278348375 in words is "thirty billion, two hundred seventy-eight million, three hundred forty-eight thousand, three hundred seventy-five".

Divisors: 1 5 11 25 55 125 275 1375 22020617 110103085 242226787 550515425 1211133935 2752577125 6055669675 30278348375