Search a number
-
+
487738468217 = 71113487251217
BaseRepresentation
bin1110001100011110111…
…10100110011101111001
31201121221022222100201202
413012033132212131321
530442342021440332
61012021452023545
750144420401310
oct7061736463571
91647838870652
10487738468217
11178937717160
127a63a761bb5
1336cbba66a20
141986c9a7277
15ca49451a62
hex718f7a6779

487738468217 has 16 divisors (see below), whose sum is σ = 654865636992. Its totient is φ = 350820875520.

The previous prime is 487738468153. The next prime is 487738468223. The reversal of 487738468217 is 712864837784.

It is a cyclic number.

It is not a de Polignac number, because 487738468217 - 26 = 487738468153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487738468247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243624608 + ... + 243626609.

It is an arithmetic number, because the mean of its divisors is an integer number (40929102312).

Almost surely, 2487738468217 is an apocalyptic number.

It is an amenable number.

487738468217 is a deficient number, since it is larger than the sum of its proper divisors (167127168775).

487738468217 is a wasteful number, since it uses less digits than its factorization.

487738468217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487251248.

The product of its digits is 101154816, while the sum is 65.

The spelling of 487738468217 in words is "four hundred eighty-seven billion, seven hundred thirty-eight million, four hundred sixty-eight thousand, two hundred seventeen".

Divisors: 1 7 11 13 77 91 143 1001 487251217 3410758519 5359763387 6334265821 37518343709 44339860747 69676924031 487738468217