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612286085 = 5169772161
BaseRepresentation
bin100100011111101…
…011111010000101
31120200010100121102
4210133223322011
52223221123320
6140431225445
721113226425
oct4437537205
91520110542
10612286085
1129468a664
12151078285
1399b0ab78
145b464485
1538b48175
hex247ebe85

612286085 has 8 divisors (see below), whose sum is σ = 735186456. Its totient is φ = 489533440.

The previous prime is 612286069. The next prime is 612286099. The reversal of 612286085 is 580682216.

It can be written as a sum of positive squares in 4 ways, for example, as 342768196 + 269517889 = 18514^2 + 16417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 612286085 - 24 = 612286069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27596 + ... + 44565.

It is an arithmetic number, because the mean of its divisors is an integer number (91898307).

Almost surely, 2612286085 is an apocalyptic number.

It is an amenable number.

612286085 is a deficient number, since it is larger than the sum of its proper divisors (122900371).

612286085 is a wasteful number, since it uses less digits than its factorization.

612286085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73863.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 612286085 is about 24744.4152284915. The cubic root of 612286085 is about 849.1507480872.

The spelling of 612286085 in words is "six hundred twelve million, two hundred eighty-six thousand, eighty-five".

Divisors: 1 5 1697 8485 72161 360805 122457217 612286085