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30243200105 = 543850116547
BaseRepresentation
bin11100001010101000…
…101001110001101001
32220001200220202012102
4130022220221301221
5443414224400410
621521000423145
72120311650026
oct341250516151
986050822172
1030243200105
111190a552958
125a40477ab5
132b0c8966a1
14166c87454d
15bc01682a5
hex70aa29c69

30243200105 has 16 divisors (see below), whose sum is σ = 37142449344. Its totient is φ = 23627688000.

The previous prime is 30243200047. The next prime is 30243200123. The reversal of 30243200105 is 50100234203.

It is a happy number.

It is not a de Polignac number, because 30243200105 - 26 = 30243200041 is a prime.

It is a super-2 number, since 2×302432001052 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1819442 + ... + 1835988.

It is an arithmetic number, because the mean of its divisors is an integer number (2321403084).

Almost surely, 230243200105 is an apocalyptic number.

It is an amenable number.

30243200105 is a deficient number, since it is larger than the sum of its proper divisors (6899249239).

30243200105 is a wasteful number, since it uses less digits than its factorization.

30243200105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25096.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 30243200105 its reverse (50100234203), we get a palindrome (80343434308).

The spelling of 30243200105 in words is "thirty billion, two hundred forty-three million, two hundred thousand, one hundred five".

Divisors: 1 5 43 215 8501 16547 42505 82735 365543 711521 1827715 3557605 140666047 703330235 6048640021 30243200105