Search a number
-
+
30589812042 = 2325721439257
BaseRepresentation
bin11100011111010010…
…110111110101001010
32220221212010110101120
4130133102313311022
51000121442441132
622015221500110
72132021053326
oct343722676512
986855113346
1030589812042
1111a781735a9
125b18571636
132b666346ca
1416a28dc986
15be07d302c
hex71f4b7d4a

30589812042 has 32 divisors (see below), whose sum is σ = 61452974592. Its totient is φ = 10151092224.

The previous prime is 30589812041. The next prime is 30589812059. The reversal of 30589812042 is 24021898503.

It is a junction number, because it is equal to n+sod(n) for n = 30589811985 and 30589812003.

It is not an unprimeable number, because it can be changed into a prime (30589812041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3299878 + ... + 3309134.

It is an arithmetic number, because the mean of its divisors is an integer number (1920405456).

Almost surely, 230589812042 is an apocalyptic number.

30589812042 is an abundant number, since it is smaller than the sum of its proper divisors (30863162550).

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

30589812042 is a wasteful number, since it uses less digits than its factorization.

30589812042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11662.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 30589812042 in words is "thirty billion, five hundred eighty-nine million, eight hundred twelve thousand, forty-two".

Divisors: 1 2 3 6 257 514 771 1542 2143 4286 6429 9257 12858 18514 27771 55542 550751 1101502 1652253 2379049 3304506 4758098 7137147 14274294 19837751 39675502 59513253 119026506 5098302007 10196604014 15294906021 30589812042