Search a number
-
+
30141223140 = 223574710311481
BaseRepresentation
bin11100000100100011…
…101001000011100100
32212210121000210002210
4130010203221003210
5443212123120030
621502515003420
72114633112060
oct340443510344
985717023083
1030141223140
1111867a31076
125a12299570
132ac47100a2
14165d0caaa0
15bb6222bb0
hex7048e90e4

30141223140 has 192 divisors, whose sum is σ = 98666201088. Its totient is φ = 6731750400.

The previous prime is 30141223139. The next prime is 30141223153. The reversal of 30141223140 is 4132214103.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20351200 + ... + 20352680.

It is an arithmetic number, because the mean of its divisors is an integer number (513886464).

Almost surely, 230141223140 is an apocalyptic number.

30141223140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30141223140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49333100544).

30141223140 is an abundant number, since it is smaller than the sum of its proper divisors (68524977948).

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

30141223140 is a wasteful number, since it uses less digits than its factorization.

30141223140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2576 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 30141223140 its reverse (4132214103), we get a palindrome (34273437243).

The spelling of 30141223140 in words is "thirty billion, one hundred forty-one million, two hundred twenty-three thousand, one hundred forty".