Base | Representation |
---|---|
bin | 111010000100100001… |
… | …1001011101100110001 |
3 | 102220212222010010110221 |
4 | 1310021003023230301 |
5 | 4020344201142011 |
6 | 133142235453041 |
7 | 12003220332511 |
oct | 1641103135461 |
9 | 386788103427 |
10 | 124705880881 |
11 | 4898424507a |
12 | 202038b7181 |
13 | b9b5126b7a |
14 | 6070325841 |
15 | 339d1b0971 |
hex | 1d090cbb31 |
124705880881 has 16 divisors (see below), whose sum is σ = 136766730240. Its totient is φ = 113372360640.
The previous prime is 124705880879. The next prime is 124705880903. The reversal of 124705880881 is 188088507421.
It is a cyclic number.
It is not a de Polignac number, because 124705880881 - 21 = 124705880879 is a prime.
It is a super-2 number, since 2×1247058808812 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (124705880081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841281 + ... + 1907806.
It is an arithmetic number, because the mean of its divisors is an integer number (8547920640).
Almost surely, 2124705880881 is an apocalyptic number.
It is an amenable number.
124705880881 is a deficient number, since it is larger than the sum of its proper divisors (12060849359).
124705880881 is a wasteful number, since it uses less digits than its factorization.
124705880881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3749184.
The product of its (nonzero) digits is 1146880, while the sum is 52.
The spelling of 124705880881 in words is "one hundred twenty-four billion, seven hundred five million, eight hundred eighty thousand, eight hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.089 sec. • engine limits •