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258994285 = 51111634049
BaseRepresentation
bin11110110111111…
…11000001101101
3200001100021100221
433123333001231
51012300304120
641411051341
76263262244
oct1733770155
9601307327
10258994285
11123217270
12728a0b51
1341871574
142657b95b
1517b0e0aa
hexf6ff06d

258994285 has 16 divisors (see below), whose sum is σ = 339422400. Its totient is φ = 188151040.

The previous prime is 258994277. The next prime is 258994313. The reversal of 258994285 is 582499852.

It is not a de Polignac number, because 258994285 - 23 = 258994277 is a prime.

It is a super-2 number, since 2×2589942852 = 134156079325322450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61941 + ... + 65989.

It is an arithmetic number, because the mean of its divisors is an integer number (21213900).

Almost surely, 2258994285 is an apocalyptic number.

It is an amenable number.

258994285 is a deficient number, since it is larger than the sum of its proper divisors (80428115).

258994285 is a wasteful number, since it uses less digits than its factorization.

258994285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228.

The product of its digits is 2073600, while the sum is 52.

The square root of 258994285 is about 16093.2993820410. The cubic root of 258994285 is about 637.4264203173.

The spelling of 258994285 in words is "two hundred fifty-eight million, nine hundred ninety-four thousand, two hundred eighty-five".

Divisors: 1 5 11 55 1163 4049 5815 12793 20245 44539 63965 222695 4708987 23544935 51798857 258994285