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30240023200 = 255237800029
BaseRepresentation
bin11100001010011100…
…100010001010100000
32220001110221100022021
4130022130202022200
5443412421220300
621520404351224
72120242645642
oct341234421240
986043840267
1030240023200
1111908783012
125a3b3a5514
132b0c02366a
14166c288892
15bbec3bd1a
hex70a7222a0

30240023200 has 36 divisors (see below), whose sum is σ = 73823458590. Its totient is φ = 12096008960.

The previous prime is 30240023159. The next prime is 30240023201. The reversal of 30240023200 is 232004203.

It can be written as a sum of positive squares in 3 ways, for example, as 23429812624 + 6810210576 = 153068^2 + 82524^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (30240023201) 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 5 ways as a sum of consecutive naturals, for example, 18899215 + ... + 18900814.

Almost surely, 230240023200 is an apocalyptic number.

It is an amenable number.

30240023200 is an abundant number, since it is smaller than the sum of its proper divisors (43583435390).

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

30240023200 is a wasteful number, since it uses less digits than its factorization.

30240023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37800049 (or 37800036 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 30240023200 its reverse (232004203), we get a palindrome (30472027403).

The spelling of 30240023200 in words is "thirty billion, two hundred forty million, twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 37800029 75600058 151200116 189000145 302400232 378000290 604800464 756000580 945000725 1209600928 1512001160 1890001450 3024002320 3780002900 6048004640 7560005800 15120011600 30240023200