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48853018781 = 76979002683
BaseRepresentation
bin101101011111110111…
…011110100010011101
311200002122120111011222
4231133313132202131
51300022333100111
634235345423125
73346423544120
oct553767364235
9150078514158
1048853018781
111979a28a096
12957493aaa5
1347b724ca08
1425162823b7
15140dd2d7db
hexb5fdde89d

48853018781 has 4 divisors (see below), whose sum is σ = 55832021472. Its totient is φ = 41874016092.

The previous prime is 48853018751. The next prime is 48853018787. The reversal of 48853018781 is 18781035884.

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 48853018781 - 230 = 47779276957 is a prime.

It is a super-2 number, since 2×488530187812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48853018787) 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, 3489501335 + ... + 3489501348.

It is an arithmetic number, because the mean of its divisors is an integer number (13958005368).

Almost surely, 248853018781 is an apocalyptic number.

It is an amenable number.

48853018781 is a deficient number, since it is larger than the sum of its proper divisors (6979002691).

48853018781 is an equidigital number, since it uses as much as digits as its factorization.

48853018781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979002690.

The product of its (nonzero) digits is 1720320, while the sum is 53.

The spelling of 48853018781 in words is "forty-eight billion, eight hundred fifty-three million, eighteen thousand, seven hundred eighty-one".

Divisors: 1 7 6979002683 48853018781