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63347081081 = 196615043959
BaseRepresentation
bin111010111111110001…
…111011111101111001
320001111202201010211012
4322333301323331321
52014213323043311
645033511443305
74401541206404
oct727761737571
9201452633735
1063347081081
1124957859679
121033a986535
135c8701513b
1430cd206d3b
1519ab50578b
hexebfc7bf79

63347081081 has 8 divisors (see below), whose sum is σ = 66782030400. Its totient is φ = 59922221040.

The previous prime is 63347081071. The next prime is 63347081087. The reversal of 63347081081 is 18018074336.

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 63347081081 - 234 = 46167211897 is a prime.

It is a super-2 number, since 2×633470810812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63347081087) 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, 2509421 + ... + 2534538.

It is an arithmetic number, because the mean of its divisors is an integer number (8347753800).

Almost surely, 263347081081 is an apocalyptic number.

It is an amenable number.

63347081081 is a deficient number, since it is larger than the sum of its proper divisors (3434949319).

63347081081 is a wasteful number, since it uses less digits than its factorization.

63347081081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044639.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 63347081081 in words is "sixty-three billion, three hundred forty-seven million, eighty-one thousand, eighty-one".

Divisors: 1 19 661 12559 5043959 95835221 3334056899 63347081081