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258716893 = 833117071
BaseRepresentation
bin11110110101110…
…11010011011101
3200000211011212011
433122323103131
51012212420033
641401111221
76261025441
oct1732732335
9600734764
10258716893
11123047916
1272788511
13417a5226
1426508821
1517aa6ccd
hexf6bb4dd

258716893 has 4 divisors (see below), whose sum is σ = 261834048. Its totient is φ = 255599740.

The previous prime is 258716881. The next prime is 258716911. The reversal of 258716893 is 398617852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258716893 - 213 = 258708701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258716803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1558453 + ... + 1558618.

It is an arithmetic number, because the mean of its divisors is an integer number (65458512).

Almost surely, 2258716893 is an apocalyptic number.

It is an amenable number.

258716893 is a deficient number, since it is larger than the sum of its proper divisors (3117155).

258716893 is an equidigital number, since it uses as much as digits as its factorization.

258716893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117154.

The product of its digits is 725760, while the sum is 49.

The square root of 258716893 is about 16084.6788280028. The cubic root of 258716893 is about 637.1987703096.

The spelling of 258716893 in words is "two hundred fifty-eight million, seven hundred sixteen thousand, eight hundred ninety-three".

Divisors: 1 83 3117071 258716893