Search a number
-
+
30252045 = 352298807
BaseRepresentation
bin111001101100…
…1110000001101
32002220222000010
41303121300031
530221031140
63000223433
7515065245
oct163316015
962828003
1030252045
111609289a
12a16ab79
136362925
144036b25
1529c8880
hex1cd9c0d

30252045 has 16 divisors (see below), whose sum is σ = 48620160. Its totient is φ = 16062144.

The previous prime is 30252043. The next prime is 30252071. The reversal of 30252045 is 54025203.

It is not a de Polignac number, because 30252045 - 21 = 30252043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30252043) 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 15 ways as a sum of consecutive naturals, for example, 969 + ... + 7838.

It is an arithmetic number, because the mean of its divisors is an integer number (3038760).

Almost surely, 230252045 is an apocalyptic number.

It is an amenable number.

30252045 is a deficient number, since it is larger than the sum of its proper divisors (18368115).

30252045 is a wasteful number, since it uses less digits than its factorization.

30252045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30252045 is about 5500.1859059490. The cubic root of 30252045 is about 311.5910054294.

Adding to 30252045 its reverse (54025203), we get a palindrome (84277248).

The spelling of 30252045 in words is "thirty million, two hundred fifty-two thousand, forty-five".

Divisors: 1 3 5 15 229 687 1145 3435 8807 26421 44035 132105 2016803 6050409 10084015 30252045