Base | Representation |
---|---|
bin | 10010111001000001… |
… | …01100101100001001 |
3 | 222011210222111101111 |
4 | 21130200230230021 |
5 | 131232323310441 |
6 | 4354214250321 |
7 | 506220443425 |
oct | 113440545411 |
9 | 28153874344 |
10 | 10142010121 |
11 | 433499a351 |
12 | 1b706569a1 |
13 | c5824c729 |
14 | 6c2d6bb85 |
15 | 3e55b0081 |
hex | 25c82cb09 |
10142010121 has 8 divisors (see below), whose sum is σ = 10310409288. Its totient is φ = 9973680000.
The previous prime is 10142010113. The next prime is 10142010139. The reversal of 10142010121 is 12101024101.
It can be written as a sum of positive squares in 4 ways, for example, as 4725050121 + 5416960000 = 68739^2 + 73600^2 .
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 10142010121 - 23 = 10142010113 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10142010521) 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, 339531 + ... + 368191.
It is an arithmetic number, because the mean of its divisors is an integer number (1288801161).
Almost surely, 210142010121 is an apocalyptic number.
It is an amenable number.
10142010121 is a deficient number, since it is larger than the sum of its proper divisors (168399167).
10142010121 is an equidigital number, since it uses as much as digits as its factorization.
10142010121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34523.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 10142010121 its reverse (12101024101), we get a palindrome (22243034222).
The spelling of 10142010121 in words is "ten billion, one hundred forty-two million, ten thousand, one hundred twenty-one".
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