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30206053 = 415912487
BaseRepresentation
bin111001100111…
…0100001100101
32002211121220201
41303032201211
530213043203
62555230501
7514514203
oct163164145
962747821
1030206053
1116061289
12a148431
136347a07
144024073
1529b9e1d
hex1cce865

30206053 has 8 divisors (see below), whose sum is σ = 31469760. Its totient is φ = 28967520.

The previous prime is 30206047. The next prime is 30206063. The reversal of 30206053 is 35060203.

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 30206053 - 29 = 30205541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30206053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30206063) 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 7 ways as a sum of consecutive naturals, for example, 3825 + ... + 8662.

It is an arithmetic number, because the mean of its divisors is an integer number (3933720).

Almost surely, 230206053 is an apocalyptic number.

It is an amenable number.

30206053 is a deficient number, since it is larger than the sum of its proper divisors (1263707).

30206053 is a wasteful number, since it uses less digits than its factorization.

30206053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12587.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 30206053 is about 5496.0033660834. The cubic root of 30206053 is about 311.4330220385.

Adding to 30206053 its reverse (35060203), we get a palindrome (65266256).

The spelling of 30206053 in words is "thirty million, two hundred six thousand, fifty-three".

Divisors: 1 41 59 2419 12487 511967 736733 30206053