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258285074 = 2139929083
BaseRepresentation
bin11110110010100…
…01111000010010
3200000000020111212
433121101320102
51012110110244
641343540122
76254246465
oct1731217022
9600006455
10258285074
11122882443
12725ba642
1341683808
14264352dc
1517a1dd9e
hexf651e12

258285074 has 8 divisors (see below), whose sum is σ = 390215280. Its totient is φ = 128213316.

The previous prime is 258285061. The next prime is 258285077. The reversal of 258285074 is 470582852.

258285074 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 a super-2 number, since 2×2582850742 = 133422358902370952, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (258285077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464264 + ... + 464819.

It is an arithmetic number, because the mean of its divisors is an integer number (48776910).

Almost surely, 2258285074 is an apocalyptic number.

258285074 is a deficient number, since it is larger than the sum of its proper divisors (131930206).

258285074 is a wasteful number, since it uses less digits than its factorization.

258285074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929224.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 258285074 is about 16071.2499202769. The cubic root of 258285074 is about 636.8440611400.

The spelling of 258285074 in words is "two hundred fifty-eight million, two hundred eighty-five thousand, seventy-four".

Divisors: 1 2 139 278 929083 1858166 129142537 258285074