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70668747211 = 206399342389
BaseRepresentation
bin100000111010000101…
…1111000000111001011
320202102000201022120211
41001310023320013023
52124212144402321
652244220301551
75051144303656
oct1016413700713
9222360638524
1070668747211
1127a74735817
12118429a18b7
136882b6376a
1435c577689d
151c891ad0e1
hex10742f81cb

70668747211 has 4 divisors (see below), whose sum is σ = 70669296000. Its totient is φ = 70668198424.

The previous prime is 70668747173. The next prime is 70668747223. The reversal of 70668747211 is 11274786607.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 11274786607 = 71610683801.

It is a cyclic number.

It is not a de Polignac number, because 70668747211 - 211 = 70668745163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70668747241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35205 + ... + 377593.

It is an arithmetic number, because the mean of its divisors is an integer number (17667324000).

Almost surely, 270668747211 is an apocalyptic number.

70668747211 is a deficient number, since it is larger than the sum of its proper divisors (548789).

70668747211 is a wasteful number, since it uses less digits than its factorization.

70668747211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548788.

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 70668747211 in words is "seventy billion, six hundred sixty-eight million, seven hundred forty-seven thousand, two hundred eleven".

Divisors: 1 206399 342389 70668747211