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48872720641 = 291685266229
BaseRepresentation
bin101101100001000010…
…101000100100000001
311200011000122110001111
4231201002220210001
51300042404030031
634241332003321
73350053162003
oct554102504401
9150130573044
1048872720641
11197aa416418
12957b460541
1347bb35a514
142518b30373
1514109211b1
hexb610a8901

48872720641 has 4 divisors (see below), whose sum is σ = 50557986900. Its totient is φ = 47187454384.

The previous prime is 48872720629. The next prime is 48872720671. The reversal of 48872720641 is 14602727884.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38202657025 + 10670063616 = 195455^2 + 103296^2 .

It is a cyclic number.

It is not a de Polignac number, because 48872720641 - 215 = 48872687873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48872720621) 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, 842633086 + ... + 842633143.

It is an arithmetic number, because the mean of its divisors is an integer number (12639496725).

Almost surely, 248872720641 is an apocalyptic number.

It is an amenable number.

48872720641 is a deficient number, since it is larger than the sum of its proper divisors (1685266259).

48872720641 is a wasteful number, since it uses less digits than its factorization.

48872720641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685266258.

The product of its (nonzero) digits is 1204224, while the sum is 49.

The spelling of 48872720641 in words is "forty-eight billion, eight hundred seventy-two million, seven hundred twenty thousand, six hundred forty-one".

Divisors: 1 29 1685266229 48872720641