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48104781 = 317943231
BaseRepresentation
bin1011011110000…
…0010101001101
310100111222100120
42313200111031
544303323111
64435015153
71122612114
oct267402515
9110458316
1048104781
112517691a
121413a4b9
139c7388a
146562c7b
154353406
hex2de054d

48104781 has 8 divisors (see below), whose sum is σ = 67912704. Its totient is φ = 30183360.

The previous prime is 48104779. The next prime is 48104807. The reversal of 48104781 is 18740184.

48104781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 48104781 - 21 = 48104779 is a prime.

It is a super-3 number, since 3×481047813 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48104711) 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 7 ways as a sum of consecutive naturals, for example, 471565 + ... + 471666.

It is an arithmetic number, because the mean of its divisors is an integer number (8489088).

Almost surely, 248104781 is an apocalyptic number.

It is an amenable number.

48104781 is a deficient number, since it is larger than the sum of its proper divisors (19807923).

48104781 is a wasteful number, since it uses less digits than its factorization.

48104781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943251.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 48104781 is about 6935.7610252949. The cubic root of 48104781 is about 363.6883704234.

It can be divided in two parts, 4810 and 4781, that added together give a triangular number (9591 = T138).

The spelling of 48104781 in words is "forty-eight million, one hundred four thousand, seven hundred eighty-one".

Divisors: 1 3 17 51 943231 2829693 16034927 48104781