Base | Representation |
---|---|
bin | 11001100001110… |
… | …11001111010001 |
3 | 112220222001111221 |
4 | 30300323033101 |
5 | 414310332040 |
6 | 33130005041 |
7 | 5210156164 |
oct | 1460731721 |
9 | 486861457 |
10 | 214152145 |
11 | aa979749 |
12 | 5b876781 |
13 | 354a0a5c |
14 | 20627adb |
15 | 13c0274a |
hex | cc3b3d1 |
214152145 has 16 divisors (see below), whose sum is σ = 272660688. Its totient is φ = 160911360.
The previous prime is 214152139. The next prime is 214152181. The reversal of 214152145 is 541251412.
It can be written as a sum of positive squares in 8 ways, for example, as 7683984 + 206468161 = 2772^2 + 14369^2 .
It is not a de Polignac number, because 214152145 - 23 = 214152137 is a prime.
It is a super-2 number, since 2×2141521452 = 91722282416202050, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43657 + ... + 48313.
It is an arithmetic number, because the mean of its divisors is an integer number (17041293).
Almost surely, 2214152145 is an apocalyptic number.
It is an amenable number.
214152145 is a deficient number, since it is larger than the sum of its proper divisors (58508543).
214152145 is a wasteful number, since it uses less digits than its factorization.
214152145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5220.
The product of its digits is 1600, while the sum is 25.
The square root of 214152145 is about 14633.9381234171. The cubic root of 214152145 is about 598.2841207566.
The spelling of 214152145 in words is "two hundred fourteen million, one hundred fifty-two thousand, one hundred forty-five".
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