Base | Representation |
---|---|
bin | 101111101011111000… |
… | …1000100100001111101 |
3 | 100210022201121000021111 |
4 | 1133113301010201331 |
5 | 3134210434302421 |
6 | 115013245402021 |
7 | 10253446306306 |
oct | 1372761044175 |
9 | 323281530244 |
10 | 102404212861 |
11 | 3a47a565885 |
12 | 17a1ab69311 |
13 | 986c941ac2 |
14 | 4d564997ad |
15 | 29e5343ee1 |
hex | 17d7c4487d |
102404212861 has 8 divisors (see below), whose sum is σ = 103716115200. Its totient is φ = 101092701840.
The previous prime is 102404212849. The next prime is 102404212931. The reversal of 102404212861 is 168212404201.
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 102404212861 - 235 = 68044474493 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102404212831) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448296 + ... + 637006.
It is an arithmetic number, because the mean of its divisors is an integer number (12964514400).
Almost surely, 2102404212861 is an apocalyptic number.
It is an amenable number.
102404212861 is a deficient number, since it is larger than the sum of its proper divisors (1311902339).
102404212861 is an equidigital number, since it uses as much as digits as its factorization.
102404212861 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 195659.
The product of its (nonzero) digits is 6144, while the sum is 31.
The spelling of 102404212861 in words is "one hundred two billion, four hundred four million, two hundred twelve thousand, eight hundred sixty-one".
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