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259407061 is a prime number
BaseRepresentation
bin11110111011000…
…11110011010101
3200002010020120221
433131203303111
51012402011221
641423554341
76266631544
oct1735436325
9602106527
10259407061
11123479401
1272a5b9b1
1341987404
142664815b
1517b91541
hexf763cd5

259407061 has 2 divisors, whose sum is σ = 259407062. Its totient is φ = 259407060.

The previous prime is 259406999. The next prime is 259407077. The reversal of 259407061 is 160704952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247086961 + 12320100 = 15719^2 + 3510^2 .

It is a cyclic number.

It is not a de Polignac number, because 259407061 - 27 = 259406933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259407661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129703530 + 129703531.

It is an arithmetic number, because the mean of its divisors is an integer number (129703531).

Almost surely, 2259407061 is an apocalyptic number.

It is an amenable number.

259407061 is a deficient number, since it is larger than the sum of its proper divisors (1).

259407061 is an equidigital number, since it uses as much as digits as its factorization.

259407061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 259407061 is about 16106.1187441295. The cubic root of 259407061 is about 637.7648765254.

The spelling of 259407061 in words is "two hundred fifty-nine million, four hundred seven thousand, sixty-one".