Base | Representation |
---|---|
bin | 1111100101011… |
… | …10011101001101 |
3 | 100010000011211001 |
4 | 13302232131031 |
5 | 231432103442 |
6 | 20550100301 |
7 | 3145153225 |
oct | 762563515 |
9 | 303004731 |
10 | 130737997 |
11 | 67886435 |
12 | 3794a691 |
13 | 21116680 |
14 | 13513085 |
15 | b7272b7 |
hex | 7cae74d |
130737997 has 4 divisors (see below), whose sum is σ = 140794780. Its totient is φ = 120681216.
The previous prime is 130737989. The next prime is 130738021. The reversal of 130737997 is 799737031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 799737031 = 29 ⋅27577139.
It can be written as a sum of positive squares in 2 ways, for example, as 25593481 + 105144516 = 5059^2 + 10254^2 .
It is a cyclic number.
It is not a de Polignac number, because 130737997 - 23 = 130737989 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 (130717997) 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 3 ways as a sum of consecutive naturals, for example, 5028372 + ... + 5028397.
It is an arithmetic number, because the mean of its divisors is an integer number (35198695).
Almost surely, 2130737997 is an apocalyptic number.
It is an amenable number.
130737997 is a deficient number, since it is larger than the sum of its proper divisors (10056783).
130737997 is a wasteful number, since it uses less digits than its factorization.
130737997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10056782.
The product of its (nonzero) digits is 250047, while the sum is 46.
The square root of 130737997 is about 11434.0717594390. The cubic root of 130737997 is about 507.5364944191.
It can be divided in two parts, 1307 and 37997, that added together give a cube (39304 = 343).
The spelling of 130737997 in words is "one hundred thirty million, seven hundred thirty-seven thousand, nine hundred ninety-seven".
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