Base | Representation |
---|---|
bin | 100100000100010… |
… | …1010100100110100 |
3 | 10010100021002221210 |
4 | 1020020222210310 |
5 | 4434304343332 |
6 | 320031241420 |
7 | 41663536350 |
oct | 11010524464 |
9 | 3110232853 |
10 | 1210231092 |
11 | 571164594 |
12 | 299379270 |
13 | 163967295 |
14 | b6a34460 |
15 | 713abecc |
hex | 4822a934 |
1210231092 has 48 divisors (see below), whose sum is σ = 3231793152. Its totient is φ = 345297120.
The previous prime is 1210231091. The next prime is 1210231093. The reversal of 1210231092 is 2901320121.
It is an interprime number because it is at equal distance from previous prime (1210231091) and next prime (1210231093).
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1210231091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52717 + ... + 72107.
It is an arithmetic number, because the mean of its divisors is an integer number (67329024).
Almost surely, 21210231092 is an apocalyptic number.
1210231092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1210231092 is an abundant number, since it is smaller than the sum of its proper divisors (2021562060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210231092 is a wasteful number, since it uses less digits than its factorization.
1210231092 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20148 (or 20146 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 21.
The square root of 1210231092 is about 34788.3758172180. The cubic root of 1210231092 is about 1065.6700705068.
The spelling of 1210231092 in words is "one billion, two hundred ten million, two hundred thirty-one thousand, ninety-two".
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