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30045052 = 2217441839
BaseRepresentation
bin111001010011…
…1001101111100
32002112110001201
41302213031330
530142420202
62551545244
7513243622
oct162471574
962473051
1030045052
1115a61324
12a08b224
1362bc64b
143dc1512
152987387
hex1ca737c

30045052 has 12 divisors (see below), whose sum is σ = 55671840. Its totient is φ = 14138816.

The previous prime is 30045031. The next prime is 30045053. The reversal of 30045052 is 25054003.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30045053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220852 + ... + 220987.

It is an arithmetic number, because the mean of its divisors is an integer number (4639320).

Almost surely, 230045052 is an apocalyptic number.

It is an amenable number.

30045052 is a deficient number, since it is larger than the sum of its proper divisors (25626788).

30045052 is a wasteful number, since it uses less digits than its factorization.

30045052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441860 (or 441858 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 30045052 is about 5481.3366982881. The cubic root of 30045052 is about 310.8787139541.

Adding to 30045052 its reverse (25054003), we get a palindrome (55099055).

The spelling of 30045052 in words is "thirty million, forty-five thousand, fifty-two".

Divisors: 1 2 4 17 34 68 441839 883678 1767356 7511263 15022526 30045052