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30040001 = 231306087
BaseRepresentation
bin111001010010…
…1111111000001
32002112012010122
41302211333001
530142240001
62551510025
7513223115
oct162457701
962465118
1030040001
1115a58552
12a088315
1362ba264
143dbd745
152985b1b
hex1ca5fc1

30040001 has 4 divisors (see below), whose sum is σ = 31346112. Its totient is φ = 28733892.

The previous prime is 30039983. The next prime is 30040009. The reversal of 30040001 is 10004003.

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.

It is a cyclic number.

It is not a de Polignac number, because 30040001 - 222 = 25845697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30040009) 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, 653021 + ... + 653066.

It is an arithmetic number, because the mean of its divisors is an integer number (7836528).

Almost surely, 230040001 is an apocalyptic number.

It is an amenable number.

30040001 is a deficient number, since it is larger than the sum of its proper divisors (1306111).

30040001 is a wasteful number, since it uses less digits than its factorization.

30040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306110.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30040001 is about 5480.8759336442. The cubic root of 30040001 is about 310.8612919353.

Adding to 30040001 its reverse (10004003), we get a palindrome (40044004).

The spelling of 30040001 in words is "thirty million, forty thousand, one".

Divisors: 1 23 1306087 30040001