Base | Representation |
---|---|
bin | 10100001010010000110… |
… | …111001101101000101011 |
3 | 11220102222121002000000022 |
4 | 110022100313031220223 |
5 | 140144304411042222 |
6 | 2540240513231055 |
7 | 202043514346061 |
oct | 24122067155053 |
9 | 4812877060008 |
10 | 1385409862187 |
11 | 49460482785a |
12 | 1a4602b6248b |
13 | a0849c73330 |
14 | 4b0a89d6031 |
15 | 2608730b042 |
hex | 14290dcda2b |
1385409862187 has 8 divisors (see below), whose sum is σ = 1492016868720. Its totient is φ = 1278808143840.
The previous prime is 1385409862093. The next prime is 1385409862253. The reversal of 1385409862187 is 7812689045831.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1385409862187 - 214 = 1385409845803 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1385409862687) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769364 + ... + 1833777.
It is an arithmetic number, because the mean of its divisors is an integer number (186502108590).
It is a 1-persistent number, because it is pandigital, but 2⋅1385409862187 = 2770819724374 is not.
Almost surely, 21385409862187 is an apocalyptic number.
1385409862187 is a deficient number, since it is larger than the sum of its proper divisors (106607006533).
1385409862187 is a wasteful number, since it uses less digits than its factorization.
1385409862187 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2644093.
The product of its (nonzero) digits is 23224320, while the sum is 62.
The spelling of 1385409862187 in words is "one trillion, three hundred eighty-five billion, four hundred nine million, eight hundred sixty-two thousand, one hundred eighty-seven".
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