Base | Representation |
---|---|
bin | 1111100011001… |
… | …11000011101111 |
3 | 100002110022122201 |
4 | 13301213003233 |
5 | 231343224201 |
6 | 20535522331 |
7 | 3142524505 |
oct | 761470357 |
9 | 302408581 |
10 | 130445551 |
11 | 676a6745 |
12 | 378293a7 |
13 | 21043522 |
14 | 13478675 |
15 | b6ba801 |
hex | 7c670ef |
130445551 has 8 divisors (see below), whose sum is σ = 135364608. Its totient is φ = 125571000.
The previous prime is 130445543. The next prime is 130445593. The reversal of 130445551 is 155544031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 130445551 - 23 = 130445543 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130440551) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5095 + ... + 16936.
It is an arithmetic number, because the mean of its divisors is an integer number (16920576).
Almost surely, 2130445551 is an apocalyptic number.
130445551 is a deficient number, since it is larger than the sum of its proper divisors (4919057).
130445551 is a wasteful number, since it uses less digits than its factorization.
130445551 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22253.
The product of its (nonzero) digits is 6000, while the sum is 28.
The square root of 130445551 is about 11421.2762421719. The cubic root of 130445551 is about 507.1577781310.
Adding to 130445551 its reverse (155544031), we get a palindrome (285989582).
The spelling of 130445551 in words is "one hundred thirty million, four hundred forty-five thousand, five hundred fifty-one".
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