Base | Representation |
---|---|
bin | 1111100001110… |
… | …01001000110001 |
3 | 100002002202122021 |
4 | 13300321020301 |
5 | 231321214312 |
6 | 20531511441 |
7 | 3141112231 |
oct | 760711061 |
9 | 302082567 |
10 | 130257457 |
11 | 675883a0 |
12 | 37758581 |
13 | 20ca8a25 |
14 | 13429cc1 |
15 | b67ec07 |
hex | 7c39231 |
130257457 has 8 divisors (see below), whose sum is σ = 142292160. Its totient is φ = 118254960.
The previous prime is 130257433. The next prime is 130257467. The reversal of 130257457 is 754752031.
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 130257457 - 211 = 130255409 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130257467) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844 + ... + 16162.
It is an arithmetic number, because the mean of its divisors is an integer number (17786520).
Almost surely, 2130257457 is an apocalyptic number.
It is an amenable number.
130257457 is a deficient number, since it is larger than the sum of its proper divisors (12034703).
130257457 is a wasteful number, since it uses less digits than its factorization.
130257457 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16103.
The product of its (nonzero) digits is 29400, while the sum is 34.
The square root of 130257457 is about 11413.0389029390. The cubic root of 130257457 is about 506.9138980306.
The spelling of 130257457 in words is "one hundred thirty million, two hundred fifty-seven thousand, four hundred fifty-seven".
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