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30042043 = 175333343
BaseRepresentation
bin111001010011…
…0011110111011
32002112021221021
41302212132323
530142321133
62551523311
7513232063
oct162463673
962467837
1030042043
1115a5a039
12a089537
1362bb175
143dc03a3
15298652d
hex1ca67bb

30042043 has 8 divisors (see below), whose sum is σ = 32410368. Its totient is φ = 27740544.

The previous prime is 30042037. The next prime is 30042049. The reversal of 30042043 is 34024003.

It is an interprime number because it is at equal distance from previous prime (30042037) and next prime (30042049).

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 30042043 - 25 = 30042011 is a prime.

It is a super-2 number, since 2×300420432 = 1805048695227698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30042049) 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, 15771 + ... + 17572.

It is an arithmetic number, because the mean of its divisors is an integer number (4051296).

Almost surely, 230042043 is an apocalyptic number.

30042043 is a deficient number, since it is larger than the sum of its proper divisors (2368325).

30042043 is a wasteful number, since it uses less digits than its factorization.

30042043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33413.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30042043 is about 5481.0622145712. The cubic root of 30042043 is about 310.8683354812.

Adding to 30042043 its reverse (34024003), we get a palindrome (64066046).

The spelling of 30042043 in words is "thirty million, forty-two thousand, forty-three".

Divisors: 1 17 53 901 33343 566831 1767179 30042043