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275112312 = 23311463013
BaseRepresentation
bin10000011001011…
…110000101111000
3201011200011010220
4100121132011320
51030412043222
643144340040
76550262466
oct2031360570
9634604126
10275112312
11131325a52
1278174620
1344cc5a67
1428775836
1519244b5c
hex1065e178

275112312 has 16 divisors (see below), whose sum is σ = 687780840. Its totient is φ = 91704096.

The previous prime is 275112311. The next prime is 275112317. The reversal of 275112312 is 213211572.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 11463013 = 275112312 / (2 + 7 + 5 + 1 + 1 + 2 + 3 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275112311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5731483 + ... + 5731530.

Almost surely, 2275112312 is an apocalyptic number.

It is an amenable number.

275112312 is an abundant number, since it is smaller than the sum of its proper divisors (412668528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275112312 is a wasteful number, since it uses less digits than its factorization.

275112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11463022 (or 11463018 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 275112312 is about 16586.5099403099. The cubic root of 275112312 is about 650.3842398775.

Adding to 275112312 its reverse (213211572), we get a palindrome (488323884).

The spelling of 275112312 in words is "two hundred seventy-five million, one hundred twelve thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 11463013 22926026 34389039 45852052 68778078 91704104 137556156 275112312