Base | Representation |
---|---|
bin | 1111100000000… |
… | …11101111101101 |
3 | 100001200122122120 |
4 | 13300003233231 |
5 | 231242220030 |
6 | 20523103153 |
7 | 3136211523 |
oct | 760035755 |
9 | 301618576 |
10 | 130038765 |
11 | 6744905a |
12 | 37671ab9 |
13 | 20c3031c |
14 | 133b0313 |
15 | b63a010 |
hex | 7c03bed |
130038765 has 8 divisors (see below), whose sum is σ = 208062048. Its totient is φ = 69354000.
The previous prime is 130038761. The next prime is 130038767. The reversal of 130038765 is 567830031.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130038765 - 22 = 130038761 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130038761) 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, 4334611 + ... + 4334640.
It is an arithmetic number, because the mean of its divisors is an integer number (26007756).
Almost surely, 2130038765 is an apocalyptic number.
130038765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130038765 is a deficient number, since it is larger than the sum of its proper divisors (78023283).
130038765 is an equidigital number, since it uses as much as digits as its factorization.
130038765 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8669259.
The product of its (nonzero) digits is 15120, while the sum is 33.
The square root of 130038765 is about 11403.4540819876. The cubic root of 130038765 is about 506.6300496294.
Adding to 130038765 its reverse (567830031), we get a palindrome (697868796).
The spelling of 130038765 in words is "one hundred thirty million, thirty-eight thousand, seven hundred sixty-five".
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