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255112420205 = 5131389484611
BaseRepresentation
bin1110110110010111100…
…0101001101101101101
3220101111020000201012202
43231211320221231231
513134432234421310
6313110320311245
724300631535636
oct3554570515555
9811436021182
10255112420205
1199213346215
1241538772525
131b0982bc5c6
14c4c17b888d
156981a7a3a5
hex3b65e29b6d

255112420205 has 8 divisors (see below), whose sum is σ = 308471812704. Its totient is φ = 202531997200.

The previous prime is 255112420153. The next prime is 255112420229. The reversal of 255112420205 is 502024211552.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-255112420205 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194741651 + ... + 194742960.

It is an arithmetic number, because the mean of its divisors is an integer number (38558976588).

Almost surely, 2255112420205 is an apocalyptic number.

It is an amenable number.

255112420205 is a deficient number, since it is larger than the sum of its proper divisors (53359392499).

255112420205 is a wasteful number, since it uses less digits than its factorization.

255112420205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389484747.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 255112420205 its reverse (502024211552), we get a palindrome (757136631757).

The spelling of 255112420205 in words is "two hundred fifty-five billion, one hundred twelve million, four hundred twenty thousand, two hundred five".

Divisors: 1 5 131 655 389484611 1947423055 51022484041 255112420205