Base | Representation |
---|---|
bin | 110011111100010011001… |
… | …1011101111010011100101 |
3 | 221021110200212000220201210 |
4 | 1213320212123233103211 |
5 | 1413430411343424223 |
6 | 23103320103342033 |
7 | 1334524053425505 |
oct | 147704633572345 |
9 | 27243625026653 |
10 | 7138880451813 |
11 | 23026449a5350 |
12 | 973690751919 |
13 | 3ca269284076 |
14 | 1a9748cb7a05 |
15 | c5a72ec7893 |
hex | 67e266ef4e5 |
7138880451813 has 16 divisors (see below), whose sum is σ = 10391881896000. Its totient is φ = 4323237636480.
The previous prime is 7138880451811. The next prime is 7138880451817. The reversal of 7138880451813 is 3181540888317.
It is a happy number.
It is not a de Polignac number, because 7138880451813 - 21 = 7138880451811 is a prime.
It is a super-2 number, since 2×71388804518132 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7138880451811) 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, 83871238 + ... + 83956311.
It is an arithmetic number, because the mean of its divisors is an integer number (649492618500).
Almost surely, 27138880451813 is an apocalyptic number.
It is an amenable number.
7138880451813 is a deficient number, since it is larger than the sum of its proper divisors (3253001444187).
7138880451813 is a wasteful number, since it uses less digits than its factorization.
7138880451813 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 167828852.
The product of its (nonzero) digits is 5160960, while the sum is 57.
The spelling of 7138880451813 in words is "seven trillion, one hundred thirty-eight billion, eight hundred eighty million, four hundred fifty-one thousand, eight hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.135 sec. • engine limits •