Search a number
-
+
30452345 = 57111923181
BaseRepresentation
bin111010000101…
…0101001111001
32010022010202122
41310022221321
530243433340
63004411025
7516561230
oct164125171
963263678
1030452345
111620a330
12a246a75
136402b51
144089b17
152a17db5
hex1d0aa79

30452345 has 64 divisors (see below), whose sum is σ = 50319360. Its totient is φ = 17107200.

The previous prime is 30452339. The next prime is 30452347. The reversal of 30452345 is 54325403.

It is not a de Polignac number, because 30452345 - 28 = 30452089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30452347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 168155 + ... + 168335.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 230452345 is an apocalyptic number.

30452345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30452345 is a deficient number, since it is larger than the sum of its proper divisors (19867015).

30452345 is a wasteful number, since it uses less digits than its factorization.

30452345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 30452345 is about 5518.3643409982. The cubic root of 30452345 is about 312.2771787600.

Adding to 30452345 its reverse (54325403), we get a palindrome (84777748).

The spelling of 30452345 in words is "thirty million, four hundred fifty-two thousand, three hundred forty-five".

Divisors: 1 5 7 11 19 23 35 55 77 95 115 133 161 181 209 253 385 437 665 805 905 1045 1265 1267 1463 1771 1991 2185 3059 3439 4163 4807 6335 7315 8855 9955 13937 15295 17195 20815 24035 24073 29141 33649 37829 45793 69685 79097 120365 145705 168245 189145 228965 264803 320551 395485 553679 870067 1324015 1602755 2768395 4350335 6090469 30452345