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48781144829 = 271031799843
BaseRepresentation
bin101101011011100101…
…010011001011111101
311122220122022220122202
4231123211103023331
51244400433113304
634224301121245
73344561614064
oct553345231375
9148818286582
1048781144829
111976275912a
129554859225
1347a53a6251
14250a8d31db
15140788281e
hexb5b9532fd

48781144829 has 4 divisors (see below), whose sum is σ = 48782971776. Its totient is φ = 48779317884.

The previous prime is 48781144823. The next prime is 48781144831. The reversal of 48781144829 is 92844118784.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-48781144829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48781144823) 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, 872819 + ... + 927024.

It is an arithmetic number, because the mean of its divisors is an integer number (12195742944).

Almost surely, 248781144829 is an apocalyptic number.

It is an amenable number.

48781144829 is a deficient number, since it is larger than the sum of its proper divisors (1826947).

48781144829 is a wasteful number, since it uses less digits than its factorization.

48781144829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826946.

The product of its digits is 4128768, while the sum is 56.

The spelling of 48781144829 in words is "forty-eight billion, seven hundred eighty-one million, one hundred forty-four thousand, eight hundred twenty-nine".

Divisors: 1 27103 1799843 48781144829