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248989464985 = 5139358258223
BaseRepresentation
bin1110011111100011101…
…1011011100110011001
3212210200111121100200111
43213320323123212121
513034412300334420
6310214552204321
723663122350352
oct3477073334631
9783614540614
10248989464985
1196661075348
124030a0996a1
131a630903791
14c0a0520d29
15672425645a
hex39f8edb999

248989464985 has 8 divisors (see below), whose sum is σ = 300936908160. Its totient is φ = 197758538544.

The previous prime is 248989464947. The next prime is 248989465003. The reversal of 248989464985 is 589464989842.

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 248989464985 - 29 = 248989464473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179128417 + ... + 179129806.

It is an arithmetic number, because the mean of its divisors is an integer number (37617113520).

Almost surely, 2248989464985 is an apocalyptic number.

It is an amenable number.

248989464985 is a deficient number, since it is larger than the sum of its proper divisors (51947443175).

248989464985 is a wasteful number, since it uses less digits than its factorization.

248989464985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358258367.

The product of its digits is 1433272320, while the sum is 76.

The spelling of 248989464985 in words is "two hundred forty-eight billion, nine hundred eighty-nine million, four hundred sixty-four thousand, nine hundred eighty-five".

Divisors: 1 5 139 695 358258223 1791291115 49797892997 248989464985