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30607147 = 110327749
BaseRepresentation
bin111010011000…
…0011100101011
32010121000010001
41310300130223
530313412042
63012003431
7521104444
oct164603453
963530101
1030607147
111630566a
12a300577
13645844c
1440ca2cb
152a48bb7
hex1d3072b

30607147 has 4 divisors (see below), whose sum is σ = 30636000. Its totient is φ = 30578296.

The previous prime is 30607139. The next prime is 30607153. The reversal of 30607147 is 74170603.

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 30607147 - 23 = 30607139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30607117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12772 + ... + 14977.

It is an arithmetic number, because the mean of its divisors is an integer number (7659000).

Almost surely, 230607147 is an apocalyptic number.

30607147 is a deficient number, since it is larger than the sum of its proper divisors (28853).

30607147 is a wasteful number, since it uses less digits than its factorization.

30607147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28852.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 30607147 is about 5532.3726374857. The cubic root of 30607147 is about 312.8054298098.

The spelling of 30607147 in words is "thirty million, six hundred seven thousand, one hundred forty-seven".

Divisors: 1 1103 27749 30607147