Search a number
-
+
30120144032 = 251197787583
BaseRepresentation
bin11100000011010011…
…001110110010100000
32212202010100212000002
4130003103032302200
5443141224102112
621500443115132
72114255666666
oct340323166240
985663325002
1030120144032
1111857044020
125a07212aa8
132ac023c744
14165a3a0c36
15bb445c1c2
hex7034ceca0

30120144032 has 48 divisors (see below), whose sum is σ = 64756806912. Its totient is φ = 13676805120.

The previous prime is 30120143981. The next prime is 30120144083. The reversal of 30120144032 is 23044102103.

It is an interprime number because it is at equal distance from previous prime (30120143981) and next prime (30120144083).

It is a junction number, because it is equal to n+sod(n) for n = 30120143995 and 30120144013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300113 + ... + 387695.

It is an arithmetic number, because the mean of its divisors is an integer number (1349100144).

Almost surely, 230120144032 is an apocalyptic number.

30120144032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30120144032 is an abundant number, since it is smaller than the sum of its proper divisors (34636662880).

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

30120144032 is a wasteful number, since it uses less digits than its factorization.

30120144032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88581 (or 88573 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30120144032 its reverse (23044102103), we get a palindrome (53164246135).

The spelling of 30120144032 in words is "thirty billion, one hundred twenty million, one hundred forty-four thousand, thirty-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 977 1954 3908 7816 10747 15632 21494 31264 42988 85976 87583 171952 175166 343904 350332 700664 963413 1401328 1926826 2802656 3853652 7707304 15414608 30829216 85568591 171137182 342274364 684548728 941254501 1369097456 1882509002 2738194912 3765018004 7530036008 15060072016 30120144032