Search a number
-
+
30347561930400 = 253452111319971777
BaseRepresentation
bin1101110011001110101111…
…01001100000111010100000
310222110012100202210012010000
412321213113221200322200
512434203301323233100
6144313251045340000
76251352606142641
oct671472751407240
9128405322705100
1030347561930400
119740368606650
1234a1689107600
1313c19bbb82c30
1476cb890cd6c8
15379622c86900
hex1b99d7a60ea0

30347561930400 has 2880 divisors, whose sum is σ = 138351771169920. Its totient is φ = 6363729100800.

The previous prime is 30347561930281. The next prime is 30347561930401. The reversal of 30347561930400 is 403916574303.

30347561930400 is a `hidden beast` number, since 3 + 0 + 3 + 4 + 7 + 56 + 193 + 0 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (30347561930401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 17077974312 + ... + 17077976088.

It is an arithmetic number, because the mean of its divisors is an integer number (48038809434).

Almost surely, 230347561930400 is an apocalyptic number.

30347561930400 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 30347561930400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69175885584960).

30347561930400 is an abundant number, since it is smaller than the sum of its proper divisors (108004209239520).

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

30347561930400 is a wasteful number, since it uses less digits than its factorization.

30347561930400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 30347561930400 in words is "thirty trillion, three hundred forty-seven billion, five hundred sixty-one million, nine hundred thirty thousand, four hundred".