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270640806 = 2345106801
BaseRepresentation
bin10000001000011…
…010011010100110
3200212020222101120
4100020122122212
51023241001211
642504434410
76464260152
oct2010323246
9625228346
10270640806
11129851497
1276778a06
13440bb6b7
1427d30062
1518b5ed06
hex1021a6a6

270640806 has 8 divisors (see below), whose sum is σ = 541281624. Its totient is φ = 90213600.

The previous prime is 270640751. The next prime is 270640813. The reversal of 270640806 is 608046072.

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

270640806 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 22553395 + ... + 22553406.

It is an arithmetic number, because the mean of its divisors is an integer number (67660203).

Almost surely, 2270640806 is an apocalyptic number.

270640806 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.

270640806 is a wasteful number, since it uses less digits than its factorization.

270640806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45106806.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 270640806 is about 16451.1642749077. The cubic root of 270640806 is about 646.8413269783.

Adding to 270640806 its reverse (608046072), we get a palindrome (878686878).

The spelling of 270640806 in words is "two hundred seventy million, six hundred forty thousand, eight hundred six".

Divisors: 1 2 3 6 45106801 90213602 135320403 270640806