Base | Representation |
---|---|
bin | 10001111001100110110… |
… | …001000101111010110100 |
3 | 11100121001201112220002120 |
4 | 101321212301011322310 |
5 | 130123203201320423 |
6 | 2341032042035540 |
7 | 154604435133603 |
oct | 21714661057264 |
9 | 4317051486076 |
10 | 1230084791988 |
11 | 434748884648 |
12 | 17a494aa8bb0 |
13 | 8bcc53ca380 |
14 | 43771d25a3a |
15 | 21ee5eb2ee3 |
hex | 11e66c45eb4 |
1230084791988 has 48 divisors (see below), whose sum is σ = 3120991875456. Its totient is φ = 374812986240.
The previous prime is 1230084791981. The next prime is 1230084792029. The reversal of 1230084791988 is 8891974800321.
It is a super-2 number, since 2×12300847919882 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230084791981) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38261403 + ... + 38293538.
It is an arithmetic number, because the mean of its divisors is an integer number (65020664072).
Almost surely, 21230084791988 is an apocalyptic number.
It is an amenable number.
1230084791988 is an abundant number, since it is smaller than the sum of its proper divisors (1890907083468).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230084791988 is a wasteful number, since it uses less digits than its factorization.
1230084791988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76555064 (or 76555062 counting only the distinct ones).
The product of its (nonzero) digits is 6967296, while the sum is 60.
The spelling of 1230084791988 in words is "one trillion, two hundred thirty billion, eighty-four million, seven hundred ninety-one thousand, nine hundred eighty-eight".
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