Base | Representation |
---|---|
bin | 111100000000010101… |
… | …011101011101011010 |
3 | 20011022020122222200010 |
4 | 330000111131131122 |
5 | 2023423103311010 |
6 | 45333201222350 |
7 | 4440432053364 |
oct | 740025353532 |
9 | 204266588603 |
10 | 64430135130 |
11 | 2536314a169 |
12 | 105a16319b6 |
13 | 60ca51181a |
14 | 3192db3d34 |
15 | 1a21640620 |
hex | f0055d75a |
64430135130 has 32 divisors (see below), whose sum is σ = 156163344768. Its totient is φ = 17011256000.
The previous prime is 64430135123. The next prime is 64430135137. The reversal of 64430135130 is 3153103446.
64430135130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (64430135123) and next prime (64430135137).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (64430135137) 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, 10629006 + ... + 10635065.
It is an arithmetic number, because the mean of its divisors is an integer number (4880104524).
Almost surely, 264430135130 is an apocalyptic number.
64430135130 is an abundant number, since it is smaller than the sum of its proper divisors (91733209638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64430135130 is a wasteful number, since it uses less digits than its factorization.
64430135130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21264182.
The product of its (nonzero) digits is 12960, while the sum is 30.
Adding to 64430135130 its reverse (3153103446), we get a palindrome (67583238576).
The spelling of 64430135130 in words is "sixty-four billion, four hundred thirty million, one hundred thirty-five thousand, one hundred thirty".
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