Search a number
-
+
30452371200 = 28365261107
BaseRepresentation
bin11100010111000110…
…100100111100000000
32220121021111202000000
4130113012210330000
5444331301334300
621553432000000
72125431612216
oct342706447400
986537452000
1030452371200
1111a0762a229
125a9a530000
132b44012174
14168c562cb6
15bd36d4c00
hex7171a4f00

30452371200 has 756 divisors, whose sum is σ = 115935970248. Its totient is φ = 7912857600.

The previous prime is 30452371199. The next prime is 30452371207. The reversal of 30452371200 is 217325403.

30452371200 is a `hidden beast` number, since 3 + 0 + 452 + 3 + 7 + 1 + 200 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30452371207) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 284601547 + ... + 284601653.

It is an arithmetic number, because the mean of its divisors is an integer number (153354458).

Almost surely, 230452371200 is an apocalyptic number.

30452371200 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 30452371200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57967985124).

30452371200 is an abundant number, since it is smaller than the sum of its proper divisors (85483599048).

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

30452371200 is an equidigital number, since it uses as much as digits as its factorization.

30452371200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

Adding to 30452371200 its reverse (217325403), we get a palindrome (30669696603).

The spelling of 30452371200 in words is "thirty billion, four hundred fifty-two million, three hundred seventy-one thousand, two hundred".