Base | Representation |
---|---|
bin | 101010001011001… |
… | …0001010000110101 |
3 | 10122121210202012210 |
4 | 1110112101100311 |
5 | 10344232432041 |
6 | 352231004033 |
7 | 50032233003 |
oct | 12426212065 |
9 | 3577722183 |
10 | 1415124021 |
11 | 666889693 |
12 | 335b09619 |
13 | 1972456bc |
14 | d5d2ba73 |
15 | 84381016 |
hex | 54591435 |
1415124021 has 16 divisors (see below), whose sum is σ = 1911188160. Its totient is φ = 931257600.
The previous prime is 1415124017. The next prime is 1415124031. The reversal of 1415124021 is 1204215141.
It is not a de Polignac number, because 1415124021 - 22 = 1415124017 is a prime.
It is a super-2 number, since 2×14151240212 = 4005151989622416882, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1415124031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503821 + ... + 506621.
It is an arithmetic number, because the mean of its divisors is an integer number (119449260).
Almost surely, 21415124021 is an apocalyptic number.
It is an amenable number.
1415124021 is a deficient number, since it is larger than the sum of its proper divisors (496064139).
1415124021 is a wasteful number, since it uses less digits than its factorization.
1415124021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4916.
The product of its (nonzero) digits is 320, while the sum is 21.
The square root of 1415124021 is about 37618.1342041309. The cubic root of 1415124021 is about 1122.7028738000.
Adding to 1415124021 its reverse (1204215141), we get a palindrome (2619339162).
The spelling of 1415124021 in words is "one billion, four hundred fifteen million, one hundred twenty-four thousand, twenty-one".
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