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27530069 = 719206993
BaseRepresentation
bin110100100000…
…1001101010101
31220210200011012
41221001031111
524021430234
62422022005
7453000410
oct151011525
956720135
1027530069
11145a3826
129277905
13591b9a8
143928b77
15263c0ce
hex1a41355

27530069 has 8 divisors (see below), whose sum is σ = 33119040. Its totient is φ = 22355136.

The previous prime is 27530059. The next prime is 27530071. The reversal of 27530069 is 96003572.

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 27530069 - 24 = 27530053 is a prime.

It is a super-2 number, since 2×275300692 = 1515809398289522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27530029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103364 + ... + 103629.

It is an arithmetic number, because the mean of its divisors is an integer number (4139880).

Almost surely, 227530069 is an apocalyptic number.

It is an amenable number.

27530069 is a deficient number, since it is larger than the sum of its proper divisors (5588971).

27530069 is a wasteful number, since it uses less digits than its factorization.

27530069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207019.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 27530069 is about 5246.9104242402. The cubic root of 27530069 is about 301.9505094113.

The spelling of 27530069 in words is "twenty-seven million, five hundred thirty thousand, sixty-nine".

Divisors: 1 7 19 133 206993 1448951 3932867 27530069