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210130345 = 5107392767
BaseRepresentation
bin11001000011001…
…01010110101001
3112122101201122101
430201211112221
5412243132340
632503453401
75131035625
oct1441452651
9478351571
10210130345
11a8682047
125a457261
13346c32a9
141dc9c185
15136aac9a
hexc8655a9

210130345 has 8 divisors (see below), whose sum is σ = 254513664. Its totient is φ = 166532784.

The previous prime is 210130337. The next prime is 210130381. The reversal of 210130345 is 543031012.

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 210130345 - 23 = 210130337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 195849 + ... + 196918.

It is an arithmetic number, because the mean of its divisors is an integer number (31814208).

Almost surely, 2210130345 is an apocalyptic number.

It is an amenable number.

210130345 is a deficient number, since it is larger than the sum of its proper divisors (44383319).

210130345 is a wasteful number, since it uses less digits than its factorization.

210130345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392879.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 210130345 is about 14495.8733783101. The cubic root of 210130345 is about 594.5151476996.

Adding to 210130345 its reverse (543031012), we get a palindrome (753161357).

The spelling of 210130345 in words is "two hundred ten million, one hundred thirty thousand, three hundred forty-five".

Divisors: 1 5 107 535 392767 1963835 42026069 210130345