Base | Representation |
---|---|
bin | 10001111010110110011… |
… | …110101011110111100010 |
3 | 11100201111221000102010110 |
4 | 101322312132223313202 |
5 | 130133423032101340 |
6 | 2341412454112150 |
7 | 154652534343144 |
oct | 21726636536742 |
9 | 4321457012113 |
10 | 1231422143970 |
11 | 435274773a17 |
12 | 17a7a894b656 |
13 | 8c1794b27c5 |
14 | 4385b7aac94 |
15 | 220735d0680 |
hex | 11eb67abde2 |
1231422143970 has 32 divisors (see below), whose sum is σ = 2959629192000. Its totient is φ = 327910788800.
The previous prime is 1231422143969. The next prime is 1231422143971. The reversal of 1231422143970 is 793412241321.
It is an interprime number because it is at equal distance from previous prime (1231422143969) and next prime (1231422143971).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1231422143971) 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, 29256720 + ... + 29298779.
It is an arithmetic number, because the mean of its divisors is an integer number (92488412250).
Almost surely, 21231422143970 is an apocalyptic number.
1231422143970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1231422143970 is an abundant number, since it is smaller than the sum of its proper divisors (1728207048030).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1231422143970 is a wasteful number, since it uses less digits than its factorization.
1231422143970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58556210.
The product of its (nonzero) digits is 72576, while the sum is 39.
The spelling of 1231422143970 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-two million, one hundred forty-three thousand, nine hundred seventy".
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