Base | Representation |
---|---|
bin | 10001101000111101101… |
… | …101101010001111100001 |
3 | 11021212221102120012012101 |
4 | 101220331231222033201 |
5 | 124330104314012103 |
6 | 2324515011130401 |
7 | 153402563216401 |
oct | 21507555521741 |
9 | 4255842505171 |
10 | 1212216157153 |
11 | 428109466841 |
12 | 176b288a3a01 |
13 | 8a408472a71 |
14 | 42958b32801 |
15 | 217ec407a1d |
hex | 11a3db6a3e1 |
1212216157153 has 8 divisors (see below), whose sum is σ = 1266447067200. Its totient is φ = 1158112402128.
The previous prime is 1212216157151. The next prime is 1212216157219. The reversal of 1212216157153 is 3517516122121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1212216157153 - 21 = 1212216157151 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1212216157151) 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, 31769263 + ... + 31807396.
It is an arithmetic number, because the mean of its divisors is an integer number (158305883400).
Almost surely, 21212216157153 is an apocalyptic number.
It is an amenable number.
1212216157153 is a deficient number, since it is larger than the sum of its proper divisors (54230910047).
1212216157153 is an equidigital number, since it uses as much as digits as its factorization.
1212216157153 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63577511.
The product of its digits is 25200, while the sum is 37.
The spelling of 1212216157153 in words is "one trillion, two hundred twelve billion, two hundred sixteen million, one hundred fifty-seven thousand, one hundred fifty-three".
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