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272394785 = 5134190689
BaseRepresentation
bin10000001111000…
…110101000100001
3200222120002101202
4100033012220201
51024213113120
643010210545
76515213615
oct2017065041
9628502352
10272394785
1112a83a263
1277283a55
1344583b60
1428269345
1518da9875
hex103c6a21

272394785 has 8 divisors (see below), whose sum is σ = 352017960. Its totient is φ = 201153024.

The previous prime is 272394713. The next prime is 272394803. The reversal of 272394785 is 587493272.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41628304 + 230766481 = 6452^2 + 15191^2 .

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 272394785 - 216 = 272329249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095280 + ... + 2095409.

It is an arithmetic number, because the mean of its divisors is an integer number (44002245).

Almost surely, 2272394785 is an apocalyptic number.

It is an amenable number.

272394785 is a deficient number, since it is larger than the sum of its proper divisors (79623175).

272394785 is a wasteful number, since it uses less digits than its factorization.

272394785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190707.

The product of its digits is 846720, while the sum is 47.

The square root of 272394785 is about 16504.3868410796. The cubic root of 272394785 is about 648.2356768929.

The spelling of 272394785 in words is "two hundred seventy-two million, three hundred ninety-four thousand, seven hundred eighty-five".

Divisors: 1 5 13 65 4190689 20953445 54478957 272394785