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258475271 is a prime number
BaseRepresentation
bin11110110100000…
…00010100000111
3200000100220102012
433122000110013
51012132202041
641352004435
76256001135
oct1732002407
9600326365
10258475271
111229a232a
127269071b
134171c262
1426484755
1517a5a3eb
hexf680507

258475271 has 2 divisors, whose sum is σ = 258475272. Its totient is φ = 258475270.

The previous prime is 258475253. The next prime is 258475291. The reversal of 258475271 is 172574852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258475271 - 214 = 258458887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258475291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129237635 + 129237636.

It is an arithmetic number, because the mean of its divisors is an integer number (129237636).

Almost surely, 2258475271 is an apocalyptic number.

258475271 is a deficient number, since it is larger than the sum of its proper divisors (1).

258475271 is an equidigital number, since it uses as much as digits as its factorization.

258475271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156800, while the sum is 41.

The square root of 258475271 is about 16077.1661371026. The cubic root of 258475271 is about 637.0003433807. Note that the first 3 decimals are identical.

The spelling of 258475271 in words is "two hundred fifty-eight million, four hundred seventy-five thousand, two hundred seventy-one".