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30147148338 = 2322333168071
BaseRepresentation
bin11100000100111010…
…001111101000110010
32212211000011210221120
4130010322033220302
5443220132221323
621503250003110
72115034350516
oct340472175062
985730153846
1030147148338
111187030882a
125a14276496
132ac5a06018
14165dbd0146
15bb69e35e3
hex704e8fa32

30147148338 has 32 divisors (see below), whose sum is σ = 60748541952. Its totient is φ = 9973616400.

The previous prime is 30147148337. The next prime is 30147148349. The reversal of 30147148338 is 83384174103.

It is a self number, because there is not a number n which added to its sum of digits gives 30147148338.

It is not an unprimeable number, because it can be changed into a prime (30147148337) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 408843 + ... + 476913.

It is an arithmetic number, because the mean of its divisors is an integer number (1898391936).

Almost surely, 230147148338 is an apocalyptic number.

30147148338 is an abundant number, since it is smaller than the sum of its proper divisors (30601393614).

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

30147148338 is a wasteful number, since it uses less digits than its factorization.

30147148338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68630.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 30147148338 in words is "thirty billion, one hundred forty-seven million, one hundred forty-eight thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 223 331 446 662 669 993 1338 1986 68071 73813 136142 147626 204213 221439 408426 442878 15179833 22531501 30359666 45063002 45539499 67594503 91078998 135189006 5024524723 10049049446 15073574169 30147148338