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30344210320 = 2452913079401
BaseRepresentation
bin11100010000101001…
…111110011110010000
32220022201222121011111
4130100221332132100
5444121104212240
621535005423104
72122646350324
oct342051763620
986281877144
1030344210320
1111961574376
125a6a26aa94
132b277a1c48
14167c049984
15bc8e6c1ea
hex710a7e790

30344210320 has 40 divisors (see below), whose sum is σ = 72983063160. Its totient is φ = 11719142400.

The previous prime is 30344210317. The next prime is 30344210321. The reversal of 30344210320 is 2301244303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13897984 + 30330312336 = 3728^2 + 174156^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 30344210291 and 30344210300.

It is not an unprimeable number, because it can be changed into a prime (30344210321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6537381 + ... + 6542020.

It is an arithmetic number, because the mean of its divisors is an integer number (1824576579).

Almost surely, 230344210320 is an apocalyptic number.

It is an amenable number.

30344210320 is an abundant number, since it is smaller than the sum of its proper divisors (42638852840).

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

30344210320 is a wasteful number, since it uses less digits than its factorization.

30344210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13079443 (or 13079437 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30344210320 its reverse (2301244303), we get a palindrome (32645454623).

The spelling of 30344210320 in words is "thirty billion, three hundred forty-four million, two hundred ten thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 13079401 26158802 52317604 65397005 104635208 130794010 209270416 261588020 379302629 523176040 758605258 1046352080 1517210516 1896513145 3034421032 3793026290 6068842064 7586052580 15172105160 30344210320