Search a number
-
+
30545052 = 2237135851
BaseRepresentation
bin111010010000…
…1010010011100
32010110211221020
41310201102130
530304420202
63010404140
7520425426
oct164412234
963424836
1030545052
1116272a4a
12a290650
1364360c5
1440b1816
152a355bc
hex1d2149c

30545052 has 24 divisors (see below), whose sum is σ = 72277632. Its totient is φ = 10038000.

The previous prime is 30545051. The next prime is 30545101. The reversal of 30545052 is 25054503.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30545051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17074 + ... + 18777.

It is an arithmetic number, because the mean of its divisors is an integer number (3011568).

Almost surely, 230545052 is an apocalyptic number.

It is an amenable number.

30545052 is an abundant number, since it is smaller than the sum of its proper divisors (41732580).

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

30545052 is a wasteful number, since it uses less digits than its factorization.

30545052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35929 (or 35927 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 30545052 is about 5526.7578199158. The cubic root of 30545052 is about 312.5937493659.

Adding to 30545052 its reverse (25054503), we get a palindrome (55599555).

The spelling of 30545052 in words is "thirty million, five hundred forty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 35851 71702 107553 143404 215106 430212 2545421 5090842 7636263 10181684 15272526 30545052