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505280233 = 7134720509
BaseRepresentation
bin11110000111011…
…111011011101001
31022012202220011201
4132013133123221
52013322431413
6122045524201
715343545133
oct3607373351
91265686151
10505280233
1123a243577
12121273661
13808b35b3
144b16c053
152e55c9dd
hex1e1df6e9

505280233 has 8 divisors (see below), whose sum is σ = 513898560. Its totient is φ = 496703760.

The previous prime is 505280227. The next prime is 505280297. The reversal of 505280233 is 332082505.

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 505280233 - 25 = 505280201 is a prime.

It is a super-2 number, since 2×5052802332 = 510616227721068578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505280203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14383 + ... + 34891.

It is an arithmetic number, because the mean of its divisors is an integer number (64237320).

Almost surely, 2505280233 is an apocalyptic number.

It is an amenable number.

505280233 is a deficient number, since it is larger than the sum of its proper divisors (8618327).

505280233 is a wasteful number, since it uses less digits than its factorization.

505280233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20927.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 505280233 is about 22478.4392919081. The cubic root of 505280233 is about 796.4846972876.

The spelling of 505280233 in words is "five hundred five million, two hundred eighty thousand, two hundred thirty-three".

Divisors: 1 71 347 20509 24637 1456139 7116623 505280233