Base | Representation |
---|---|
bin | 111010000101001111… |
… | …1010001001101001001 |
3 | 102220221122112120001121 |
4 | 1310022133101031021 |
5 | 4020421341130211 |
6 | 133144501115241 |
7 | 12003632453110 |
oct | 1641237211511 |
9 | 386848476047 |
10 | 124730020681 |
11 | 48996932722 |
12 | 2020b9b8b21 |
13 | b9ba129686 |
14 | 607360ac77 |
15 | 33a037d271 |
hex | 1d0a7d1349 |
124730020681 has 8 divisors (see below), whose sum is σ = 143187828224. Its totient is φ = 106432021440.
The previous prime is 124730020631. The next prime is 124730020759. The reversal of 124730020681 is 186020037421.
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 124730020681 - 27 = 124730020553 is a prime.
It is a super-2 number, since 2×1247300206812 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (124730020621) 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, 39950400 + ... + 39953521.
It is an arithmetic number, because the mean of its divisors is an integer number (17898478528).
Almost surely, 2124730020681 is an apocalyptic number.
It is an amenable number.
124730020681 is a deficient number, since it is larger than the sum of its proper divisors (18457807543).
124730020681 is an equidigital number, since it uses as much as digits as its factorization.
124730020681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79904151.
The product of its (nonzero) digits is 16128, while the sum is 34.
The spelling of 124730020681 in words is "one hundred twenty-four billion, seven hundred thirty million, twenty thousand, six hundred eighty-one".
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