Search a number
-
+
30542042375 = 531329648107
BaseRepresentation
bin11100011100011100…
…101001010100000111
32220211112020111201122
4130130130221110013
51000022230324000
622010353544155
72130601035215
oct343434512407
986745214648
1030542042375
1111a53206539
125b0457505b
132b5977a530
14169a425cb5
15bdb4e9085
hex71c729507

30542042375 has 32 divisors (see below), whose sum is σ = 42464036160. Its totient is φ = 21776361600.

The previous prime is 30542042353. The next prime is 30542042389. The reversal of 30542042375 is 57324024503.

It is not a de Polignac number, because 30542042375 - 214 = 30542025991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276929 + ... + 371178.

It is an arithmetic number, because the mean of its divisors is an integer number (1327001130).

Almost surely, 230542042375 is an apocalyptic number.

30542042375 is a deficient number, since it is larger than the sum of its proper divisors (11921993785).

30542042375 is a wasteful number, since it uses less digits than its factorization.

30542042375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648164 (or 648154 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 35.

Adding to 30542042375 its reverse (57324024503), we get a palindrome (87866066878).

The spelling of 30542042375 in words is "thirty billion, five hundred forty-two million, forty-two thousand, three hundred seventy-five".

Divisors: 1 5 13 25 29 65 125 145 325 377 725 1625 1885 3625 9425 47125 648107 3240535 8425391 16202675 18795103 42126955 81013375 93975515 210634775 244336339 469877575 1053173875 1221681695 2349387875 6108408475 30542042375