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50488987 = 319531709
BaseRepresentation
bin1100000010011…
…0011010011011
310112000002212111
43000212122123
5100411121422
65002053151
71152102133
oct300463233
9115002774
1050488987
112655513a
1214aaa1b7
13a5c9b53
1469c3ac3
154674a77
hex302669b

50488987 has 8 divisors (see below), whose sum is σ = 52202880. Its totient is φ = 48780480.

The previous prime is 50488981. The next prime is 50489011. The reversal of 50488987 is 78988405.

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 50488987 - 27 = 50488859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50488987.

It is not an unprimeable number, because it can be changed into a prime (50488981) 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, 28689 + ... + 30397.

It is an arithmetic number, because the mean of its divisors is an integer number (6525360).

Almost surely, 250488987 is an apocalyptic number.

50488987 is a deficient number, since it is larger than the sum of its proper divisors (1713893).

50488987 is a wasteful number, since it uses less digits than its factorization.

50488987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 50488987 is about 7105.5602875495. The cubic root of 50488987 is about 369.6002183046.

The spelling of 50488987 in words is "fifty million, four hundred eighty-eight thousand, nine hundred eighty-seven".

Divisors: 1 31 953 1709 29543 52979 1628677 50488987