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275068690 = 25135094157
BaseRepresentation
bin10000011001010…
…011011100010010
3201011120221022021
4100121103130102
51030404144230
643143402054
76550021351
oct2031233422
9634527267
10275068690
111312a61a6
127815332a
1344cabc50
1428763998
1519236c7a
hex10653712

275068690 has 32 divisors (see below), whose sum is σ = 534386160. Its totient is φ = 101339904.

The previous prime is 275068669. The next prime is 275068699. The reversal of 275068690 is 96860572.

It can be written as a sum of positive squares in 8 ways, for example, as 105001009 + 170067681 = 10247^2 + 13041^2 .

It is a super-2 number, since 2×2750686902 = 151325568436632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275068699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64092 + ... + 68248.

Almost surely, 2275068690 is an apocalyptic number.

275068690 is a deficient number, since it is larger than the sum of its proper divisors (259317470).

275068690 is a wasteful number, since it uses less digits than its factorization.

275068690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 275068690 is about 16585.1949038894. The cubic root of 275068690 is about 650.3498629343.

The spelling of 275068690 in words is "two hundred seventy-five million, sixty-eight thousand, six hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 509 1018 2545 4157 5090 6617 8314 13234 20785 33085 41570 54041 66170 108082 270205 540410 2115913 4231826 10579565 21159130 27506869 55013738 137534345 275068690