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56005003 = 293162297
BaseRepresentation
bin1101010110100…
…1000110001011
310220101100102101
43111221012023
5103314130003
65320214231
71250014615
oct325510613
9126340371
1056005003
112968242a
121690a377
13b7ab772
14761bdb5
154db411d
hex356918b

56005003 has 8 divisors (see below), whose sum is σ = 59806080. Its totient is φ = 52328640.

The previous prime is 56004979. The next prime is 56005009. The reversal of 56005003 is 30050065.

56005003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56005003 - 29 = 56004491 is a prime.

It is a super-2 number, since 2×560050032 = 6273120722060018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56005009) 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, 30250 + ... + 32047.

It is an arithmetic number, because the mean of its divisors is an integer number (7475760).

Almost surely, 256005003 is an apocalyptic number.

56005003 is a deficient number, since it is larger than the sum of its proper divisors (3801077).

56005003 is a wasteful number, since it uses less digits than its factorization.

56005003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62357.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 56005003 is about 7483.6490430805. The cubic root of 56005003 is about 382.5976295422.

Adding to 56005003 its reverse (30050065), we get a palindrome (86055068).

The spelling of 56005003 in words is "fifty-six million, five thousand, three".

Divisors: 1 29 31 899 62297 1806613 1931207 56005003