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87104293 is a prime number
BaseRepresentation
bin1010011000100…
…01101100100101
320001220100121221
411030101230211
5134244314133
612350540341
72105242243
oct514215445
9201810557
1087104293
1145193821
12252076b1
1315079c03
14b7d5793
1579a8a2d
hex5311b25

87104293 has 2 divisors, whose sum is σ = 87104294. Its totient is φ = 87104292.

The previous prime is 87104273. The next prime is 87104299. The reversal of 87104293 is 39240178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79959364 + 7144929 = 8942^2 + 2673^2 .

It is a cyclic number.

It is not a de Polignac number, because 87104293 - 25 = 87104261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87104299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43552146 + 43552147.

It is an arithmetic number, because the mean of its divisors is an integer number (43552147).

Almost surely, 287104293 is an apocalyptic number.

It is an amenable number.

87104293 is a deficient number, since it is larger than the sum of its proper divisors (1).

87104293 is an equidigital number, since it uses as much as digits as its factorization.

87104293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 87104293 is about 9332.9680702336. The cubic root of 87104293 is about 443.2817517138.

The spelling of 87104293 in words is "eighty-seven million, one hundred four thousand, two hundred ninety-three".