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48091281 = 373596379
BaseRepresentation
bin1011011101110…
…1000010010001
310100111021211120
42313131002101
544302410111
64434432453
71122524550
oct267350221
9110437746
1048091281
1125167767
1214132729
139c6a6a4
14655bd97
15434e406
hex2ddd091

48091281 has 16 divisors (see below), whose sum is σ = 73497600. Its totient is φ = 27399888.

The previous prime is 48091273. The next prime is 48091289. The reversal of 48091281 is 18219084.

48091281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (48091273) and next prime (48091289).

It is not a de Polignac number, because 48091281 - 23 = 48091273 is a prime.

It is a super-3 number, since 3×480912813 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48091289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4350 + ... + 10728.

It is an arithmetic number, because the mean of its divisors is an integer number (4593600).

Almost surely, 248091281 is an apocalyptic number.

It is an amenable number.

48091281 is a deficient number, since it is larger than the sum of its proper divisors (25406319).

48091281 is a wasteful number, since it uses less digits than its factorization.

48091281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 48091281 is about 6934.7877400826. The cubic root of 48091281 is about 363.6543457225.

The spelling of 48091281 in words is "forty-eight million, ninety-one thousand, two hundred eighty-one".

Divisors: 1 3 7 21 359 1077 2513 6379 7539 19137 44653 133959 2290061 6870183 16030427 48091281