Base | Representation |
---|---|
bin | 111111111001100111… |
… | …010001011000101101 |
3 | 20120002201012112221102 |
4 | 333321213101120231 |
5 | 2111004224043203 |
6 | 51304200212445 |
7 | 4646164122410 |
oct | 777147213055 |
9 | 216081175842 |
10 | 68612331053 |
11 | 27109965932 |
12 | 1136a16a125 |
13 | 6615ac5776 |
14 | 346c5d3b77 |
15 | 1bb88a4888 |
hex | ff99d162d |
68612331053 has 16 divisors (see below), whose sum is σ = 79435055616. Its totient is φ = 58046209200.
The previous prime is 68612330993. The next prime is 68612331071. The reversal of 68612331053 is 35013321686.
It is not a de Polignac number, because 68612331053 - 210 = 68612330029 is a prime.
It is a super-4 number, since 4×686123310534 (a number of 44 digits) contains 4444 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 68612330998 and 68612331016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68612331353) 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, 554450 + ... + 666812.
It is an arithmetic number, because the mean of its divisors is an integer number (4964690976).
Almost surely, 268612331053 is an apocalyptic number.
It is an amenable number.
68612331053 is a deficient number, since it is larger than the sum of its proper divisors (10822724563).
68612331053 is a wasteful number, since it uses less digits than its factorization.
68612331053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113504.
The product of its (nonzero) digits is 77760, while the sum is 38.
The spelling of 68612331053 in words is "sixty-eight billion, six hundred twelve million, three hundred thirty-one thousand, fifty-three".
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