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48987866519 = 176147239987
BaseRepresentation
bin101101100111111001…
…111000010110010111
311200110001022110111122
4231213321320112113
51300311343212034
634301003554155
73352651665164
oct554771702627
9150401273448
1048987866519
11198594121a9
1295b1b2b95b
134809174b87
14252a14506b
15141aab862e
hexb67e78597

48987866519 has 8 divisors (see below), whose sum is σ = 52719826608. Its totient is φ = 45350386560.

The previous prime is 48987866503. The next prime is 48987866527. The reversal of 48987866519 is 91566878984.

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

It is not a de Polignac number, because 48987866519 - 24 = 48987866503 is a prime.

It is a super-2 number, since 2×489878665192 (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 (48987866579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23618957 + ... + 23621030.

It is an arithmetic number, because the mean of its divisors is an integer number (6589978326).

Almost surely, 248987866519 is an apocalyptic number.

48987866519 is a deficient number, since it is larger than the sum of its proper divisors (3731960089).

48987866519 is a wasteful number, since it uses less digits than its factorization.

48987866519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47240065.

The product of its digits is 209018880, while the sum is 71.

The spelling of 48987866519 in words is "forty-eight billion, nine hundred eighty-seven million, eight hundred sixty-six thousand, five hundred nineteen".

Divisors: 1 17 61 1037 47239987 803079779 2881639207 48987866519