Base | Representation |
---|---|
bin | 10001100110111111101… |
… | …001011001110011011111 |
3 | 11021200111000201202201212 |
4 | 101212333221121303133 |
5 | 124311241341041111 |
6 | 2323525054255035 |
7 | 153266301511160 |
oct | 21467751316337 |
9 | 4250430652655 |
10 | 1210101112031 |
11 | 427223592069 |
12 | 1766384b747b |
13 | 8a15c217b86 |
14 | 427d7c8b767 |
15 | 217268bc98b |
hex | 119bfa59cdf |
1210101112031 has 8 divisors (see below), whose sum is σ = 1383017124480. Its totient is φ = 1037196205848.
The previous prime is 1210101111997. The next prime is 1210101112079. The reversal of 1210101112031 is 1302111010121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1210101112031 is a prime.
It is a super-2 number, since 2×12101011120312 (a number of 25 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 = 1210101111997 and 1210101112015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1210101112331) 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, 2541761 + ... + 2980058.
It is an arithmetic number, because the mean of its divisors is an integer number (172877140560).
Almost surely, 21210101112031 is an apocalyptic number.
1210101112031 is a deficient number, since it is larger than the sum of its proper divisors (172916012449).
1210101112031 is an equidigital number, since it uses as much as digits as its factorization.
1210101112031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5553133.
The product of its (nonzero) digits is 12, while the sum is 14.
Adding to 1210101112031 its reverse (1302111010121), we get a palindrome (2512212122152).
The spelling of 1210101112031 in words is "one trillion, two hundred ten billion, one hundred one million, one hundred twelve thousand, thirty-one".
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