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290268074 = 2197736721
BaseRepresentation
bin10001010011010…
…010001110101010
3202020012010221102
4101103102032222
51043302034244
644445241402
710123144415
oct2123221652
9666163842
10290268074
11139937778
1281263262
13481a1275
142a79cb7c
151a73a54e
hex114d23aa

290268074 has 8 divisors (see below), whose sum is σ = 437612868. Its totient is φ = 144397120.

The previous prime is 290268049. The next prime is 290268079. The reversal of 290268074 is 470862092.

It can be written as a sum of positive squares in 2 ways, for example, as 257377849 + 32890225 = 16043^2 + 5735^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (290268079) 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, 367967 + ... + 368754.

Almost surely, 2290268074 is an apocalyptic number.

290268074 is a deficient number, since it is larger than the sum of its proper divisors (147344794).

290268074 is a wasteful number, since it uses less digits than its factorization.

290268074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736920.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 290268074 is about 17037.2554714661. The cubic root of 290268074 is about 662.1144871863.

The spelling of 290268074 in words is "two hundred ninety million, two hundred sixty-eight thousand, seventy-four".

Divisors: 1 2 197 394 736721 1473442 145134037 290268074