Base | Representation |
---|---|
bin | 11011111101101011000000… |
… | …11101110000011010110100 |
3 | 22001201122022120021201000200 |
4 | 31332311200131300122310 |
5 | 31024443434242040233 |
6 | 334441201305440500 |
7 | 15644461365624450 |
oct | 1576654035603264 |
9 | 261648276251020 |
10 | 61492665190068 |
11 | 18658990431202 |
12 | 6a918351a0130 |
13 | 284096c4c3978 |
14 | 1128391bb1660 |
15 | 71987304a313 |
hex | 37ed607706b4 |
61492665190068 has 288 divisors, whose sum is σ = 185657337465600. Its totient is φ = 16789723711488.
The previous prime is 61492665190051. The next prime is 61492665190079. The reversal of 61492665190068 is 86009156629416.
61492665190068 is a `hidden beast` number, since 6 + 1 + 492 + 6 + 6 + 51 + 90 + 0 + 6 + 8 = 666.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a junction number, because it is equal to n+sod(n) for n = 61492665189987 and 61492665190014.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 746346771 + ... + 746429157.
Almost surely, 261492665190068 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 61492665190068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92828668732800).
61492665190068 is an abundant number, since it is smaller than the sum of its proper divisors (124164672275532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61492665190068 is a wasteful number, since it uses less digits than its factorization.
61492665190068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83479 (or 83474 counting only the distinct ones).
The product of its (nonzero) digits is 33592320, while the sum is 63.
The spelling of 61492665190068 in words is "sixty-one trillion, four hundred ninety-two billion, six hundred sixty-five million, one hundred ninety thousand, sixty-eight".
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