Base | Representation |
---|---|
bin | 111110100001010001… |
… | …001011110000010101 |
3 | 20102021102012202000210 |
4 | 332201101023300111 |
5 | 2044440304131223 |
6 | 50501132000033 |
7 | 4564355552553 |
oct | 764121136025 |
9 | 212242182023 |
10 | 67130145813 |
11 | 26519243155 |
12 | 11015900019 |
13 | 643aa00093 |
14 | 336b80abd3 |
15 | 1b2d6c8893 |
hex | fa144bc15 |
67130145813 has 8 divisors (see below), whose sum is σ = 89560496800. Its totient is φ = 44726612688.
The previous prime is 67130145787. The next prime is 67130145821. The reversal of 67130145813 is 31854103176.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 67130145813 - 220 = 67129097237 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 (67130145883) 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, 6698623 + ... + 6708636.
It is an arithmetic number, because the mean of its divisors is an integer number (11195062100).
Almost surely, 267130145813 is an apocalyptic number.
It is an amenable number.
67130145813 is a deficient number, since it is larger than the sum of its proper divisors (22430350987).
67130145813 is a wasteful number, since it uses less digits than its factorization.
67130145813 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13408931.
The product of its (nonzero) digits is 60480, while the sum is 39.
Adding to 67130145813 its reverse (31854103176), we get a palindrome (98984248989).
The spelling of 67130145813 in words is "sixty-seven billion, one hundred thirty million, one hundred forty-five thousand, eight hundred thirteen".
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