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257848482 = 2342974747
BaseRepresentation
bin11110101111001…
…11010010100010
3122222012001121210
433113213102202
51012002122412
641330330550
76250450563
oct1727472242
9588161553
10257848482
11122604421
1272429a56
134155cb88
142636016a
151798483c
hexf5e74a2

257848482 has 8 divisors (see below), whose sum is σ = 515696976. Its totient is φ = 85949492.

The previous prime is 257848477. The next prime is 257848489. The reversal of 257848482 is 284848752.

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

257848482 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (257848489) 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, 21487368 + ... + 21487379.

It is an arithmetic number, because the mean of its divisors is an integer number (64462122).

Almost surely, 2257848482 is an apocalyptic number.

257848482 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257848482 is a wasteful number, since it uses less digits than its factorization.

257848482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42974752.

The product of its digits is 1146880, while the sum is 48.

The square root of 257848482 is about 16057.6611621992. The cubic root of 257848482 is about 636.4850291249.

The spelling of 257848482 in words is "two hundred fifty-seven million, eight hundred forty-eight thousand, four hundred eighty-two".

Divisors: 1 2 3 6 42974747 85949494 128924241 257848482