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275055249 = 3713097869
BaseRepresentation
bin10000011001010…
…000001010010001
3201011120020212110
4100121100022101
51030403231444
643143215533
76546634230
oct2031201221
9634506773
10275055249
11131297097
12781475a9
1344ca5ab1
142875cb17
1519232cb9
hex10650291

275055249 has 8 divisors (see below), whose sum is σ = 419131840. Its totient is φ = 157174416.

The previous prime is 275055247. The next prime is 275055269. The reversal of 275055249 is 942550572.

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

It is not a de Polignac number, because 275055249 - 21 = 275055247 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (275055247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6548914 + ... + 6548955.

It is an arithmetic number, because the mean of its divisors is an integer number (52391480).

Almost surely, 2275055249 is an apocalyptic number.

It is an amenable number.

275055249 is a deficient number, since it is larger than the sum of its proper divisors (144076591).

275055249 is a wasteful number, since it uses less digits than its factorization.

275055249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13097879.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 275055249 is about 16584.7896881450. The cubic root of 275055249 is about 650.3392698289.

The spelling of 275055249 in words is "two hundred seventy-five million, fifty-five thousand, two hundred forty-nine".

Divisors: 1 3 7 21 13097869 39293607 91685083 275055249