Search a number
-
+
30443051232 = 25331110929387
BaseRepresentation
bin11100010110100011…
…000001100011100000
32220120121222020102000
4130112203001203200
5444321410114412
621552500124000
72125256444256
oct342643014340
986517866360
1030443051232
1111a02343a80
125a97396600
132b420caca9
14168b2185d6
15bd29934dc
hex7168c18e0

30443051232 has 192 divisors, whose sum is σ = 97756243200. Its totient is φ = 9140221440.

The previous prime is 30443051203. The next prime is 30443051237. The reversal of 30443051232 is 23215034403.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30443051196 and 30443051205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30443051237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1021243 + ... + 1050629.

It is an arithmetic number, because the mean of its divisors is an integer number (509147100).

Almost surely, 230443051232 is an apocalyptic number.

30443051232 is a gapful number since it is divisible by the number (32) 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 30443051232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48878121600).

30443051232 is an abundant number, since it is smaller than the sum of its proper divisors (67313191968).

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

30443051232 is a wasteful number, since it uses less digits than its factorization.

30443051232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29526 (or 29512 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 30443051232 its reverse (23215034403), we get a palindrome (53658085635).

The spelling of 30443051232 in words is "thirty billion, four hundred forty-three million, fifty-one thousand, two hundred thirty-two".