Base | Representation |
---|---|
bin | 1111010000110… |
… | …0000010011101 |
3 | 11110110011120022 |
4 | 3310030002131 |
5 | 112341344240 |
6 | 10204001525 |
7 | 1405045130 |
oct | 364140235 |
9 | 143404508 |
10 | 64012445 |
11 | 33151552 |
12 | 195302a5 |
13 | 103533b3 |
14 | 8704217 |
15 | 59469b5 |
hex | 3d0c09d |
64012445 has 16 divisors (see below), whose sum is σ = 88485888. Its totient is φ = 43545600.
The previous prime is 64012441. The next prime is 64012451. The reversal of 64012445 is 54421046.
It is not a de Polignac number, because 64012445 - 22 = 64012441 is a prime.
It is a super-2 number, since 2×640124452 = 8195186229756050, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64012441) 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, 2756 + ... + 11645.
It is an arithmetic number, because the mean of its divisors is an integer number (5530368).
Almost surely, 264012445 is an apocalyptic number.
It is an amenable number.
64012445 is a deficient number, since it is larger than the sum of its proper divisors (24473443).
64012445 is a wasteful number, since it uses less digits than its factorization.
64012445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14540.
The product of its (nonzero) digits is 3840, while the sum is 26.
The square root of 64012445 is about 8000.7777746917. Note that the first 5 decimals coincide. The cubic root of 64012445 is about 400.0259254030.
The spelling of 64012445 in words is "sixty-four million, twelve thousand, four hundred forty-five".
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