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48988561509 = 3311347933521
BaseRepresentation
bin101101100111111100…
…100010000001100101
311200110002121202212000
4231213330202001211
51300312032432014
634301030515513
73352660621326
oct554774420145
9150402552760
1048988561509
1119859847378
1295b2205b99
134809359304
14252a28644d
15141aba4509
hexb67f22065

48988561509 has 32 divisors (see below), whose sum is σ = 73372953600. Its totient is φ = 32301480960.

The previous prime is 48988561499. The next prime is 48988561519. The reversal of 48988561509 is 90516588984.

48988561509 is a `hidden beast` number, since 4 + 8 + 9 + 8 + 8 + 5 + 615 + 0 + 9 = 666.

48988561509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (48988561499) and next prime (48988561519).

It is not a de Polignac number, because 48988561509 - 25 = 48988561477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48988561519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1444669 + ... + 1478189.

It is an arithmetic number, because the mean of its divisors is an integer number (2292904800).

Almost surely, 248988561509 is an apocalyptic number.

It is an amenable number.

48988561509 is a deficient number, since it is larger than the sum of its proper divisors (24384392091).

48988561509 is a wasteful number, since it uses less digits than its factorization.

48988561509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34122 (or 34116 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 63.

The spelling of 48988561509 in words is "forty-eight billion, nine hundred eighty-eight million, five hundred sixty-one thousand, five hundred nine".

Divisors: 1 3 9 27 113 339 479 1017 1437 3051 4311 12933 33521 54127 100563 162381 301689 487143 905067 1461429 3787873 11363619 16056559 34090857 48169677 102272571 144509031 433527093 1814391167 5443173501 16329520503 48988561509