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275215093 = 439765983
BaseRepresentation
bin10000011001110…
…111001011110101
3201011212101010121
4100121313023311
51030423340333
643150451541
76551201236
oct2031671365
9634771117
10275215093
1113139619a
1278203bb1
134503078a
14287a108d
151926532d
hex106772f5

275215093 has 8 divisors (see below), whose sum is σ = 284523008. Its totient is φ = 266039424.

The previous prime is 275215043. The next prime is 275215097. The reversal of 275215093 is 390512572.

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 275215093 - 213 = 275206901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275215097) 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, 28821 + ... + 37162.

It is an arithmetic number, because the mean of its divisors is an integer number (35565376).

Almost surely, 2275215093 is an apocalyptic number.

It is an amenable number.

275215093 is a deficient number, since it is larger than the sum of its proper divisors (9307915).

275215093 is an equidigital number, since it uses as much as digits as its factorization.

275215093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66123.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 275215093 is about 16589.6079821074. The cubic root of 275215093 is about 650.4652235543.

The spelling of 275215093 in words is "two hundred seventy-five million, two hundred fifteen thousand, ninety-three".

Divisors: 1 43 97 4171 65983 2837269 6400351 275215093