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30506027 = 231326349
BaseRepresentation
bin111010001011…
…1110000101011
32010101212101212
41310113300223
530302143102
63005503335
7520203566
oct164276053
963355355
1030506027
11162466a2
12a271b4b
136421406
1440a14dd
152a28c52
hex1d17c2b

30506027 has 4 divisors (see below), whose sum is σ = 31832400. Its totient is φ = 29179656.

The previous prime is 30506023. The next prime is 30506029. The reversal of 30506027 is 72060503.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30506027 - 22 = 30506023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1326349 = 30506027 / (3 + 0 + 5 + 0 + 6 + 0 + 2 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30505993 and 30506011.

It is not an unprimeable number, because it can be changed into a prime (30506023) 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, 663152 + ... + 663197.

It is an arithmetic number, because the mean of its divisors is an integer number (7958100).

Almost surely, 230506027 is an apocalyptic number.

30506027 is a deficient number, since it is larger than the sum of its proper divisors (1326373).

30506027 is a wasteful number, since it uses less digits than its factorization.

30506027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326372.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 30506027 is about 5523.2261405812. The cubic root of 30506027 is about 312.4605671844.

The spelling of 30506027 in words is "thirty million, five hundred six thousand, twenty-seven".

Divisors: 1 23 1326349 30506027