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275000005 = 5721122449
BaseRepresentation
bin10000011001000…
…010101011000101
3201011110110002101
4100121002223011
51030400000010
643142112101
76546314200
oct2031025305
9634413071
10275000005
11131259635
127811b631
1344c868c7
1428746937
151922173a
hex10642ac5

275000005 has 12 divisors (see below), whose sum is σ = 383877900. Its totient is φ = 188571264.

The previous prime is 274999993. The next prime is 275000051. The reversal of 275000005 is 500000572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 155600676 + 119399329 = 12474^2 + 10927^2 .

It is not a de Polignac number, because 275000005 - 217 = 274868933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560980 + ... + 561469.

It is an arithmetic number, because the mean of its divisors is an integer number (31989825).

Almost surely, 2275000005 is an apocalyptic number.

It is an amenable number.

275000005 is a deficient number, since it is larger than the sum of its proper divisors (108877895).

275000005 is a wasteful number, since it uses less digits than its factorization.

275000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122468 (or 1122461 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 275000005 is about 16583.1241025327. The cubic root of 275000005 is about 650.2957273669.

Adding to 275000005 its reverse (500000572), we get a palindrome (775000577).

The spelling of 275000005 in words is "two hundred seventy-five million, five", and thus it is an aban number.

Divisors: 1 5 7 35 49 245 1122449 5612245 7857143 39285715 55000001 275000005