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275276680 = 2357983131
BaseRepresentation
bin10000011010000…
…110001110001000
3201011222111121121
4100122012032020
51030432323210
643152045024
76551545630
oct2032061610
9634874547
10275276680
11131428498
1278233774
1345052813
14287b96c0
15192786da
hex10686388

275276680 has 32 divisors (see below), whose sum is σ = 707855040. Its totient is φ = 94380480.

The previous prime is 275276663. The next prime is 275276681. The reversal of 275276680 is 86672572.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (275276681) 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, 491286 + ... + 491845.

It is an arithmetic number, because the mean of its divisors is an integer number (22120470).

Almost surely, 2275276680 is an apocalyptic number.

275276680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275276680 is an abundant number, since it is smaller than the sum of its proper divisors (432578360).

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

275276680 is a wasteful number, since it uses less digits than its factorization.

275276680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983149 (or 983145 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 275276680 is about 16591.4640704189. The cubic root of 275276680 is about 650.5137398057.

The spelling of 275276680 in words is "two hundred seventy-five million, two hundred seventy-six thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 983131 1966262 3932524 4915655 6881917 7865048 9831310 13763834 19662620 27527668 34409585 39325240 55055336 68819170 137638340 275276680