Base | Representation |
---|---|
bin | 111001010101111011… |
… | …1010011010101100011 |
3 | 102202212000022101222122 |
4 | 1302223313103111203 |
5 | 4004143434012342 |
6 | 132323150454455 |
7 | 11616404566160 |
oct | 1625367232543 |
9 | 382760271878 |
10 | 123142485347 |
11 | 482517a4952 |
12 | 1ba4820442b |
13 | b7c626925b |
14 | 5d6283d067 |
15 | 330ace24d2 |
hex | 1cabdd3563 |
123142485347 has 16 divisors (see below), whose sum is σ = 148652562432. Its totient is φ = 99770348160.
The previous prime is 123142485289. The next prime is 123142485377. The reversal of 123142485347 is 743584241321.
It is not a de Polignac number, because 123142485347 - 212 = 123142481251 is a prime.
It is a super-2 number, since 2×1231424853472 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 123142485298 and 123142485307.
It is not an unprimeable number, because it can be changed into a prime (123142485377) 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, 6589238 + ... + 6607899.
It is an arithmetic number, because the mean of its divisors is an integer number (9290785152).
Almost surely, 2123142485347 is an apocalyptic number.
123142485347 is a deficient number, since it is larger than the sum of its proper divisors (25510077085).
123142485347 is a wasteful number, since it uses less digits than its factorization.
123142485347 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13197218.
The product of its digits is 645120, while the sum is 44.
The spelling of 123142485347 in words is "one hundred twenty-three billion, one hundred forty-two million, four hundred eighty-five thousand, three hundred forty-seven".
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