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258703231 is a prime number
BaseRepresentation
bin11110110101101…
…11111101111111
3200000210111010011
433122313331333
51012212000411
641400524051
76260640553
oct1732677577
9600714104
10258703231
11123038626
1272780627
134179bc47
1426503863
1517aa2c21
hexf6b7f7f

258703231 has 2 divisors, whose sum is σ = 258703232. Its totient is φ = 258703230.

The previous prime is 258703213. The next prime is 258703253. The reversal of 258703231 is 132307852.

Together with previous prime (258703213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258703231 - 25 = 258703199 is a prime.

It is a super-2 number, since 2×2587032312 = 133854723459678722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 258703193 and 258703202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258703201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129351615 + 129351616.

It is an arithmetic number, because the mean of its divisors is an integer number (129351616).

Almost surely, 2258703231 is an apocalyptic number.

258703231 is a deficient number, since it is larger than the sum of its proper divisors (1).

258703231 is an equidigital number, since it uses as much as digits as its factorization.

258703231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 258703231 is about 16084.2541325360. The cubic root of 258703231 is about 637.1875539787.

The spelling of 258703231 in words is "two hundred fifty-eight million, seven hundred three thousand, two hundred thirty-one".