Base | Representation |
---|---|
bin | 10110100111111001… |
… | …01101011011001110 |
3 | 1011100110112200210012 |
4 | 23103330231123032 |
5 | 144333313414440 |
6 | 5325115313222 |
7 | 606661644461 |
oct | 132374553316 |
9 | 34313480705 |
10 | 12145841870 |
11 | 5173013848 |
12 | 242b74b812 |
13 | 11b7438ba6 |
14 | 8331432d8 |
15 | 4b147ce65 |
hex | 2d3f2d6ce |
12145841870 has 8 divisors (see below), whose sum is σ = 21862515384. Its totient is φ = 4858336744.
The previous prime is 12145841867. The next prime is 12145841933. The reversal of 12145841870 is 7814854121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607292084 + ... + 607292103.
It is an arithmetic number, because the mean of its divisors is an integer number (2732814423).
Almost surely, 212145841870 is an apocalyptic number.
12145841870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12145841870 is a deficient number, since it is larger than the sum of its proper divisors (9716673514).
12145841870 is a wasteful number, since it uses less digits than its factorization.
12145841870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1214584194.
The product of its (nonzero) digits is 71680, while the sum is 41.
The spelling of 12145841870 in words is "twelve billion, one hundred forty-five million, eight hundred forty-one thousand, eight hundred seventy".
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