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30034145 = 521432803
BaseRepresentation
bin111001010010…
…0100011100001
32002111220002202
41302210203201
530142043040
62551422545
7513200051
oct162444341
962456082
1030034145
1115a54109
12a084a55
1362b76ab
143dbb561
152984015
hex1ca48e1

30034145 has 8 divisors (see below), whose sum is σ = 36070656. Its totient is φ = 24007536.

The previous prime is 30034091. The next prime is 30034153. The reversal of 30034145 is 54143003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30034145 - 214 = 30017761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 9314 + ... + 12116.

It is an arithmetic number, because the mean of its divisors is an integer number (4508832).

Almost surely, 230034145 is an apocalyptic number.

It is an amenable number.

30034145 is a deficient number, since it is larger than the sum of its proper divisors (6036511).

30034145 is a wasteful number, since it uses less digits than its factorization.

30034145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30034145 is about 5480.3416864280. The cubic root of 30034145 is about 310.8410908482.

Adding to 30034145 its reverse (54143003), we get a palindrome (84177148).

The spelling of 30034145 in words is "thirty million, thirty-four thousand, one hundred forty-five".

Divisors: 1 5 2143 2803 10715 14015 6006829 30034145