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268028047 = 773352237
BaseRepresentation
bin11111111100111…
…00100010001111
3200200100020100201
433332130202033
51022103344142
642332434331
76433125610
oct1776344217
9620306321
10268028047
11128327491
12759189a7
13436b53a1
142784dc07
15187e5ab7
hexff9c88f

268028047 has 8 divisors (see below), whose sum is σ = 306741536. Its totient is φ = 229420512.

The previous prime is 268028027. The next prime is 268028071. The reversal of 268028047 is 740820862.

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

It is a cyclic number.

It is not a de Polignac number, because 268028047 - 219 = 267503759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268027997 and 268028015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268028017) 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, 20988 + ... + 31249.

It is an arithmetic number, because the mean of its divisors is an integer number (38342692).

Almost surely, 2268028047 is an apocalyptic number.

268028047 is a deficient number, since it is larger than the sum of its proper divisors (38713489).

268028047 is an equidigital number, since it uses as much as digits as its factorization.

268028047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52977.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 268028047 is about 16371.5621429355. The cubic root of 268028047 is about 644.7530629352.

The spelling of 268028047 in words is "two hundred sixty-eight million, twenty-eight thousand, forty-seven".

Divisors: 1 7 733 5131 52237 365659 38289721 268028047