Base | Representation |
---|---|
bin | 111010110100101100… |
… | …111010011011011001 |
3 | 20001000210222011001110 |
4 | 322310230322123121 |
5 | 2013323232332211 |
6 | 45003232010533 |
7 | 4364123316015 |
oct | 726454723331 |
9 | 201023864043 |
10 | 63161214681 |
11 | 2487194a484 |
12 | 102a8690a49 |
13 | 5c57669016 |
14 | 30b2663545 |
15 | 199a03dea6 |
hex | eb4b3a6d9 |
63161214681 has 8 divisors (see below), whose sum is σ = 84216132000. Its totient is φ = 42106886912.
The previous prime is 63161214679. The next prime is 63161214719. The reversal of 63161214681 is 18641216136.
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 63161214681 - 21 = 63161214679 is a prime.
It is a super-2 number, since 2×631612146812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (63161214601) 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, 277945 + ... + 451193.
It is an arithmetic number, because the mean of its divisors is an integer number (10527016500).
Almost surely, 263161214681 is an apocalyptic number.
It is an amenable number.
63161214681 is a deficient number, since it is larger than the sum of its proper divisors (21054917319).
63161214681 is a wasteful number, since it uses less digits than its factorization.
63161214681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 294775.
The product of its digits is 41472, while the sum is 39.
The spelling of 63161214681 in words is "sixty-three billion, one hundred sixty-one million, two hundred fourteen thousand, six hundred eighty-one".
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