Base | Representation |
---|---|
bin | 1111011000111… |
… | …0001001111010 |
3 | 11111110020122110 |
4 | 3312032021322 |
5 | 113010423102 |
6 | 10223233150 |
7 | 1412425005 |
oct | 366161172 |
9 | 144406573 |
10 | 64545402 |
11 | 33485a09 |
12 | 197487b6 |
13 | 104abb5c |
14 | 880253c |
15 | 59ee86c |
hex | 3d8e27a |
64545402 has 16 divisors (see below), whose sum is σ = 129172032. Its totient is φ = 21501600.
The previous prime is 64545389. The next prime is 64545409. The reversal of 64545402 is 20454546.
It is a super-2 number, since 2×645454022 = 8332217838683208, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 64545402.
It is not an unprimeable number, because it can be changed into a prime (64545409) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13198 + ... + 17414.
It is an arithmetic number, because the mean of its divisors is an integer number (8073252).
Almost surely, 264545402 is an apocalyptic number.
64545402 is an abundant number, since it is smaller than the sum of its proper divisors (64626630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64545402 is a wasteful number, since it uses less digits than its factorization.
64545402 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6773.
The product of its (nonzero) digits is 19200, while the sum is 30.
The square root of 64545402 is about 8034.0153099182. The cubic root of 64545402 is about 401.1330416777.
Adding to 64545402 its reverse (20454546), we get a palindrome (84999948).
The spelling of 64545402 in words is "sixty-four million, five hundred forty-five thousand, four hundred two".
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