Base | Representation |
---|---|
bin | 10001111001101101101… |
… | …101100010100011011001 |
3 | 11100121100211210011200220 |
4 | 101321231231202203121 |
5 | 130123423013114314 |
6 | 2341051403150253 |
7 | 154610351345616 |
oct | 21715555424331 |
9 | 4317324704626 |
10 | 1230201301209 |
11 | 4347a8621761 |
12 | 17a507b15389 |
13 | 8c0135a143a |
14 | 437835b350d |
15 | 220013293a9 |
hex | 11e6db628d9 |
1230201301209 has 4 divisors (see below), whose sum is σ = 1640268401616. Its totient is φ = 820134200804.
The previous prime is 1230201301207. The next prime is 1230201301279. The reversal of 1230201301209 is 9021031020321.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 1230201301209 - 21 = 1230201301207 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1230201301201) 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, 205033550199 + ... + 205033550204.
It is an arithmetic number, because the mean of its divisors is an integer number (410067100404).
Almost surely, 21230201301209 is an apocalyptic number.
It is an amenable number.
1230201301209 is a deficient number, since it is larger than the sum of its proper divisors (410067100407).
1230201301209 is an equidigital number, since it uses as much as digits as its factorization.
1230201301209 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 410067100406.
The product of its (nonzero) digits is 648, while the sum is 24.
The spelling of 1230201301209 in words is "one trillion, two hundred thirty billion, two hundred one million, three hundred one thousand, two hundred nine".
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