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48877973657 = 1722912555349
BaseRepresentation
bin101101100001010110…
…101011000010011001
311200011101112022211122
4231201112223002121
51300100230124112
634242040335025
73350145630632
oct554126530231
9150141468748
1048877973657
1119802384057
129581174475
1347bc479506
1425196da889
15141110c872
hexb615ab099

48877973657 has 8 divisors (see below), whose sum is σ = 51979149000. Its totient is φ = 45801909504.

The previous prime is 48877973621. The next prime is 48877973671. The reversal of 48877973657 is 75637977884.

It can be written as a sum of positive squares in 4 ways, for example, as 41756470336 + 7121503321 = 204344^2 + 84389^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 48877973657 - 212 = 48877969561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48877973357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6273782 + ... + 6281567.

It is an arithmetic number, because the mean of its divisors is an integer number (6497393625).

Almost surely, 248877973657 is an apocalyptic number.

It is an amenable number.

48877973657 is a deficient number, since it is larger than the sum of its proper divisors (3101175343).

48877973657 is a wasteful number, since it uses less digits than its factorization.

48877973657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12555595.

The product of its digits is 497871360, while the sum is 71.

The spelling of 48877973657 in words is "forty-eight billion, eight hundred seventy-seven million, nine hundred seventy-three thousand, six hundred fifty-seven".

Divisors: 1 17 229 3893 12555349 213440933 2875174921 48877973657