Base | Representation |
---|---|
bin | 10000111011001… |
… | …01010011001101 |
3 | 100220010221220121 |
4 | 20131211103031 |
5 | 242321111220 |
6 | 22030544541 |
7 | 3342514351 |
oct | 1035452315 |
9 | 326127817 |
10 | 141972685 |
11 | 7315a1a8 |
12 | 3b668151 |
13 | 2354b20a |
14 | 14bd9461 |
15 | c6e5eaa |
hex | 87654cd |
141972685 has 4 divisors (see below), whose sum is σ = 170367228. Its totient is φ = 113578144.
The previous prime is 141972679. The next prime is 141972697. The reversal of 141972685 is 586279141.
141972685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586279141 = 7 ⋅83754163.
It can be written as a sum of positive squares in 2 ways, for example, as 100060009 + 41912676 = 10003^2 + 6474^2 .
It is a cyclic number.
It is not a de Polignac number, because 141972685 - 219 = 141448397 is a prime.
It is a super-2 number, since 2×1419726852 = 40312486572218450, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14197264 + ... + 14197273.
It is an arithmetic number, because the mean of its divisors is an integer number (42591807).
Almost surely, 2141972685 is an apocalyptic number.
It is an amenable number.
141972685 is a deficient number, since it is larger than the sum of its proper divisors (28394543).
141972685 is an equidigital number, since it uses as much as digits as its factorization.
141972685 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28394542.
The product of its digits is 120960, while the sum is 43.
The square root of 141972685 is about 11915.2291207513. The cubic root of 141972685 is about 521.6768905621.
The spelling of 141972685 in words is "one hundred forty-one million, nine hundred seventy-two thousand, six hundred eighty-five".
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