Base | Representation |
---|---|
bin | 101111100110001001… |
… | …1111000011111110011 |
3 | 100202211022221012021210 |
4 | 1133030103320133303 |
5 | 3133312233341034 |
6 | 114542222051203 |
7 | 10245623524065 |
oct | 1371423703763 |
9 | 322738835253 |
10 | 102212012019 |
11 | 3a39101a507 |
12 | 17986719b03 |
13 | 983bb886b0 |
14 | 4d38b47735 |
15 | 29d352a8e9 |
hex | 17cc4f87f3 |
102212012019 has 32 divisors (see below), whose sum is σ = 148392002304. Its totient is φ = 62204284800.
The previous prime is 102212012017. The next prime is 102212012047. The reversal of 102212012019 is 910210212201.
It is not a de Polignac number, because 102212012019 - 21 = 102212012017 is a prime.
It is a super-2 number, since 2×1022120120192 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 102212011986 and 102212012004.
It is not an unprimeable number, because it can be changed into a prime (102212012017) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3463444 + ... + 3492830.
It is an arithmetic number, because the mean of its divisors is an integer number (4637250072).
Almost surely, 2102212012019 is an apocalyptic number.
102212012019 is a deficient number, since it is larger than the sum of its proper divisors (46179990285).
102212012019 is a wasteful number, since it uses less digits than its factorization.
102212012019 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30387.
The product of its (nonzero) digits is 144, while the sum is 21.
The spelling of 102212012019 in words is "one hundred two billion, two hundred twelve million, twelve thousand, nineteen".
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