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30042529 = 1125710627
BaseRepresentation
bin111001010011…
…0100110100001
32002112022121021
41302212212201
530142330104
62551525441
7513233356
oct162464641
962468537
1030042529
1115a5a440
12a089881
1362bb45a
143dc062d
152986754
hex1ca69a1

30042529 has 8 divisors (see below), whose sum is σ = 32904288. Its totient is φ = 27202560.

The previous prime is 30042527. The next prime is 30042533. The reversal of 30042529 is 92524003.

It is a happy number.

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

It is not a de Polignac number, because 30042529 - 21 = 30042527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30042527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2487 + ... + 8140.

It is an arithmetic number, because the mean of its divisors is an integer number (4113036).

Almost surely, 230042529 is an apocalyptic number.

It is an amenable number.

30042529 is a deficient number, since it is larger than the sum of its proper divisors (2861759).

30042529 is a wasteful number, since it uses less digits than its factorization.

30042529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10895.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30042529 is about 5481.1065488640. The cubic root of 30042529 is about 310.8700118118.

The spelling of 30042529 in words is "thirty million, forty-two thousand, five hundred twenty-nine".

Divisors: 1 11 257 2827 10627 116897 2731139 30042529