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30043601 = 74291943
BaseRepresentation
bin111001010011…
…0110111010001
32002112101001222
41302212313101
530142343401
62551534425
7513236450
oct162466721
962471058
1030043601
1115a60225
12a08a415
1362bbaa3
143dc0b97
152986c1b
hex1ca6dd1

30043601 has 4 divisors (see below), whose sum is σ = 34335552. Its totient is φ = 25751652.

The previous prime is 30043597. The next prime is 30043603. The reversal of 30043601 is 10634003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10634003 = 14477349.

It is a cyclic number.

It is not a de Polignac number, because 30043601 - 22 = 30043597 is a prime.

It is a super-2 number, since 2×300436012 = 1805235922094402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30043601.

It is not an unprimeable number, because it can be changed into a prime (30043603) 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, 2145965 + ... + 2145978.

It is an arithmetic number, because the mean of its divisors is an integer number (8583888).

Almost surely, 230043601 is an apocalyptic number.

It is an amenable number.

30043601 is a deficient number, since it is larger than the sum of its proper divisors (4291951).

30043601 is an equidigital number, since it uses as much as digits as its factorization.

30043601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291950.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30043601 is about 5481.2043384643. The cubic root of 30043601 is about 310.8737093333.

Adding to 30043601 its reverse (10634003), we get a palindrome (40677604).

The spelling of 30043601 in words is "thirty million, forty-three thousand, six hundred one".

Divisors: 1 7 4291943 30043601