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30404001 = 3411511637
BaseRepresentation
bin111001111111…
…0110110100001
32010012200110010
41303332312201
530240412001
63003355133
7516300255
oct163766641
963180403
1030404001
1116186a81
12a222aa9
1363b6b44
144076265
152a088d6
hex1cfeda1

30404001 has 16 divisors (see below), whose sum is σ = 41827968. Its totient is φ = 19632000.

The previous prime is 30403991. The next prime is 30404021. The reversal of 30404001 is 10040403.

It is not a de Polignac number, because 30404001 - 25 = 30403969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30404021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17755 + ... + 19391.

It is an arithmetic number, because the mean of its divisors is an integer number (2614248).

Almost surely, 230404001 is an apocalyptic number.

It is an amenable number.

30404001 is a deficient number, since it is larger than the sum of its proper divisors (11423967).

30404001 is a wasteful number, since it uses less digits than its factorization.

30404001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30404001 is about 5513.9823177083. The cubic root of 30404001 is about 312.1118414784. Note that the first 3 decimals are identical.

Adding to 30404001 its reverse (10040403), we get a palindrome (40444404).

The spelling of 30404001 in words is "thirty million, four hundred four thousand, one".

Divisors: 1 3 41 123 151 453 1637 4911 6191 18573 67117 201351 247187 741561 10134667 30404001