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258069 = 3712289
BaseRepresentation
bin111111000000010101
3111010000010
4333000111
531224234
65310433
72123250
oct770025
9433003
10258069
11166989
12105419
1390606
146a097
15516e9
hex3f015

258069 has 8 divisors (see below), whose sum is σ = 393280. Its totient is φ = 147456.

The previous prime is 258067. The next prime is 258101. The reversal of 258069 is 960852.

258069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 258069 - 21 = 258067 is a prime.

It is a super-2 number, since 2×2580692 = 133199217522, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6124 + ... + 6165.

It is an arithmetic number, because the mean of its divisors is an integer number (49160).

2258069 is an apocalyptic number.

It is an amenable number.

258069 is a deficient number, since it is larger than the sum of its proper divisors (135211).

258069 is a wasteful number, since it uses less digits than its factorization.

258069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12299.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 258069 is about 508.0049212360. The cubic root of 258069 is about 63.6666423009. Note that the first 4 decimals are identical.

The spelling of 258069 in words is "two hundred fifty-eight thousand, sixty-nine".

Divisors: 1 3 7 21 12289 36867 86023 258069