Search a number
-
+
30123020110 = 2553265721391
BaseRepresentation
bin11100000011011110…
…001100111101001110
32212202022202222020111
4130003132030331032
5443142443120420
621501024510234
72114322306031
oct340336147516
985668688214
1030123020110
1111858728947
125a0817b37a
132ac0a08871
14165a90d018
15bb482945a
hex70378cf4e

30123020110 has 32 divisors (see below), whose sum is σ = 55267857792. Its totient is φ = 11816862720.

The previous prime is 30123020107. The next prime is 30123020111. The reversal of 30123020110 is 1102032103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397515 + ... + 1418905.

It is an arithmetic number, because the mean of its divisors is an integer number (1727120556).

Almost surely, 230123020110 is an apocalyptic number.

30123020110 is a deficient number, since it is larger than the sum of its proper divisors (25144837682).

30123020110 is a wasteful number, since it uses less digits than its factorization.

30123020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24108.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30123020110 its reverse (1102032103), we get a palindrome (31225052213).

The spelling of 30123020110 in words is "thirty billion, one hundred twenty-three million, twenty thousand, one hundred ten".

Divisors: 1 2 5 10 53 106 265 530 2657 5314 13285 21391 26570 42782 106955 140821 213910 281642 704105 1133723 1408210 2267446 5668615 11337230 56835887 113671774 284179435 568358870 3012302011 6024604022 15061510055 30123020110