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30317774400 = 26325214512
BaseRepresentation
bin11100001111000101…
…001000011001000000
32220020220020111220100
4130033011020121000
5444042322240100
621532223042400
72122205554554
oct341705103100
986226214810
1030317774400
1111948658701
125a61440400
132b221772a4
141678727864
15bc6999400
hex70f148640

30317774400 has 189 divisors, whose sum is σ = 107830843393. Its totient is φ = 8079168000.

The previous prime is 30317774341. The next prime is 30317774407. The reversal of 30317774400 is 447771303.

The square root of 30317774400 is 174120.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10914398784 + 19403375616 = 104472^2 + 139296^2 .

It is a super-3 number, since 3×303177744003 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30317774407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20893675 + ... + 20895125.

Almost surely, 230317774400 is an apocalyptic number.

30317774400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30317774400 is the 174120-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30317774400

30317774400 is an abundant number, since it is smaller than the sum of its proper divisors (77513068993).

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

30317774400 is an equidigital number, since it uses as much as digits as its factorization.

30317774400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

Multiplying 30317774400 by its sum of digits (36), we get a square (1091439878400 = 10447202).

30317774400 divided by its sum of digits (36) gives a square (842160400 = 290202).

The spelling of 30317774400 in words is "thirty billion, three hundred seventeen million, seven hundred seventy-four thousand, four hundred".