Base | Representation |
---|---|
bin | 11000000101001… |
… | …11010101110011 |
3 | 112002010021101122 |
4 | 30002213111303 |
5 | 403203341034 |
6 | 32013452455 |
7 | 5002034216 |
oct | 1402472563 |
9 | 462107348 |
10 | 202012019 |
11 | a4037690 |
12 | 577a112b |
13 | 32b10051 |
14 | 1cb8777d |
15 | 12b0562e |
hex | c0a7573 |
202012019 has 16 divisors (see below), whose sum is σ = 223624800. Its totient is φ = 180960000.
The previous prime is 202012007. The next prime is 202012039. The reversal of 202012019 is 910210202.
202012019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 202012019 - 28 = 202011763 is a prime.
It is a super-2 number, since 2×2020120192 = 81617711640912722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 202011988 and 202012006.
It is not an unprimeable number, because it can be changed into a prime (202012039) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387479 + ... + 387999.
It is an arithmetic number, because the mean of its divisors is an integer number (13976550).
Almost surely, 2202012019 is an apocalyptic number.
202012019 is a deficient number, since it is larger than the sum of its proper divisors (21612781).
202012019 is a wasteful number, since it uses less digits than its factorization.
202012019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 982.
The product of its (nonzero) digits is 72, while the sum is 17.
The square root of 202012019 is about 14213.0932242070. The cubic root of 202012019 is about 586.7580677510.
The spelling of 202012019 in words is "two hundred two million, twelve thousand, nineteen".
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