Search a number
-
+
30120223430 = 2511733373561
BaseRepresentation
bin11100000011010011…
…100010001011000110
32212202010111212220202
4130003103202023012
5443141234122210
621500444530502
72114256450323
oct340323421306
985663455822
1030120223430
1111857098740
125a07250a32
132ac026991b
14165a3c1b4a
15bb44759a5
hex7034e22c6

30120223430 has 32 divisors (see below), whose sum is σ = 59226013728. Its totient is φ = 10937836800.

The previous prime is 30120223417. The next prime is 30120223451. The reversal of 30120223430 is 3432202103.

It is a congruent 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, 106151 + ... + 267410.

It is an arithmetic number, because the mean of its divisors is an integer number (1850812929).

Almost surely, 230120223430 is an apocalyptic number.

30120223430 is a deficient number, since it is larger than the sum of its proper divisors (29105790298).

30120223430 is a wasteful number, since it uses less digits than its factorization.

30120223430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374312.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30120223430 its reverse (3432202103), we get a palindrome (33552425533).

The spelling of 30120223430 in words is "thirty billion, one hundred twenty million, two hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 733 1466 3665 7330 8063 16126 40315 80630 373561 747122 1867805 3735610 4109171 8218342 20545855 41091710 273820213 547640426 1369101065 2738202130 3012022343 6024044686 15060111715 30120223430