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48066781 = 76866683
BaseRepresentation
bin1011011101011…
…1000011011101
310100110001020011
42313113003131
544301114111
64434123221
71122363250
oct267270335
9110401204
1048066781
1125150314
1214120511
139c5c4a9
146553097
154347021
hex2dd70dd

48066781 has 4 divisors (see below), whose sum is σ = 54933472. Its totient is φ = 41200092.

The previous prime is 48066779. The next prime is 48066791. The reversal of 48066781 is 18766084.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48066781 - 21 = 48066779 is a prime.

It is a super-3 number, since 3×480667813 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48066721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3433335 + ... + 3433348.

It is an arithmetic number, because the mean of its divisors is an integer number (13733368).

Almost surely, 248066781 is an apocalyptic number.

It is an amenable number.

48066781 is a deficient number, since it is larger than the sum of its proper divisors (6866691).

48066781 is an equidigital number, since it uses as much as digits as its factorization.

48066781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6866690.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 48066781 is about 6933.0210586728. The cubic root of 48066781 is about 363.5925809237.

The spelling of 48066781 in words is "forty-eight million, sixty-six thousand, seven hundred eighty-one".

Divisors: 1 7 6866683 48066781