Base | Representation |
---|---|
bin | 11101111110101101110… |
… | …00011110010010111001 |
3 | 10122110212121020022200222 |
4 | 32333112320132102321 |
5 | 113334122142441441 |
6 | 2105120015305425 |
7 | 134264616116651 |
oct | 16772670362271 |
9 | 3573777208628 |
10 | 1030102312121 |
11 | 36795599a5a3 |
12 | 14778321b275 |
13 | 761a490394c |
14 | 37c002c5361 |
15 | 1bbde34ed4b |
hex | efd6e1e4b9 |
1030102312121 has 4 divisors (see below), whose sum is σ = 1044213302772. Its totient is φ = 1015991321472.
The previous prime is 1030102312079. The next prime is 1030102312177. The reversal of 1030102312121 is 1212132010301.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 419821060096 + 610281252025 = 647936^2 + 781205^2 .
It is a cyclic number.
It is not a de Polignac number, because 1030102312121 - 210 = 1030102311097 is a prime.
It is a super-2 number, since 2×10301023121212 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1030102312121.
It is not an unprimeable number, because it can be changed into a prime (1030102312321) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7055495216 + ... + 7055495361.
It is an arithmetic number, because the mean of its divisors is an integer number (261053325693).
Almost surely, 21030102312121 is an apocalyptic number.
It is an amenable number.
1030102312121 is a deficient number, since it is larger than the sum of its proper divisors (14110990651).
1030102312121 is an equidigital number, since it uses as much as digits as its factorization.
1030102312121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14110990650.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 1030102312121 its reverse (1212132010301), we get a palindrome (2242234322422).
The spelling of 1030102312121 in words is "one trillion, thirty billion, one hundred two million, three hundred twelve thousand, one hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •