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30004261 = 74286323
BaseRepresentation
bin111001001110…
…1010000100101
32002110101002221
41302131100211
530140114021
62551032341
7513013660
oct162352045
962411087
1030004261
1115a33711
12a06b6b1
1362a6c01
143db06d7
15297a241
hex1c9d425

30004261 has 4 divisors (see below), whose sum is σ = 34290592. Its totient is φ = 25717932.

The previous prime is 30004243. The next prime is 30004291. The reversal of 30004261 is 16240003.

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 30004261 - 217 = 29873189 is a prime.

It is a super-2 number, since 2×300042612 = 1800511356312242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30004231) 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, 2143155 + ... + 2143168.

It is an arithmetic number, because the mean of its divisors is an integer number (8572648).

Almost surely, 230004261 is an apocalyptic number.

It is an amenable number.

30004261 is a deficient number, since it is larger than the sum of its proper divisors (4286331).

30004261 is an equidigital number, since it uses as much as digits as its factorization.

30004261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286330.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30004261 is about 5477.6145355437. The cubic root of 30004261 is about 310.7379609186.

Adding to 30004261 its reverse (16240003), we get a palindrome (46244264).

The spelling of 30004261 in words is "thirty million, four thousand, two hundred sixty-one".

Divisors: 1 7 4286323 30004261