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56030061 = 318676687
BaseRepresentation
bin1101010110111…
…1001101101101
310220102121210110
43111233031231
5103320430221
65320530233
71250150643
oct325571555
9126377713
1056030061
112969a23a
1216920979
13b7b9ca9
147627193
154dbb776
hex356f36d

56030061 has 4 divisors (see below), whose sum is σ = 74706752. Its totient is φ = 37353372.

The previous prime is 56030057. The next prime is 56030081. The reversal of 56030061 is 16003065.

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 not a de Polignac number, because 56030061 - 22 = 56030057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56030081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9338341 + ... + 9338346.

It is an arithmetic number, because the mean of its divisors is an integer number (18676688).

Almost surely, 256030061 is an apocalyptic number.

It is an amenable number.

56030061 is a deficient number, since it is larger than the sum of its proper divisors (18676691).

56030061 is a wasteful number, since it uses less digits than its factorization.

56030061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18676690.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 56030061 is about 7485.3230391213. The cubic root of 56030061 is about 382.6546821947.

The spelling of 56030061 in words is "fifty-six million, thirty thousand, sixty-one".

Divisors: 1 3 18676687 56030061