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256024047 = 3199428851
BaseRepresentation
bin11110100001010…
…01110111101111
3122211202100222010
433100221313233
51011020232142
641223252303
76226111536
oct1720516757
9584670863
10256024047
11121578724
12718aa093
1341071626
142600731d
1517723e9c
hexf429def

256024047 has 8 divisors (see below), whose sum is σ = 343081600. Its totient is φ = 169824600.

The previous prime is 256024037. The next prime is 256024057. The reversal of 256024047 is 740420652.

It is an interprime number because it is at equal distance from previous prime (256024037) and next prime (256024057).

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

It is not a de Polignac number, because 256024047 - 226 = 188915183 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 (256024007) 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, 213829 + ... + 215022.

It is an arithmetic number, because the mean of its divisors is an integer number (42885200).

Almost surely, 2256024047 is an apocalyptic number.

256024047 is a deficient number, since it is larger than the sum of its proper divisors (87057553).

256024047 is a wasteful number, since it uses less digits than its factorization.

256024047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429053.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 256024047 is about 16000.7514511038. The cubic root of 256024047 is about 634.9803015362.

Adding to 256024047 its reverse (740420652), we get a palindrome (996444699).

The spelling of 256024047 in words is "two hundred fifty-six million, twenty-four thousand, forty-seven".

Divisors: 1 3 199 597 428851 1286553 85341349 256024047