Base | Representation |
---|---|
bin | 10010101011111000000… |
… | …00111011111100010111 |
3 | 2021101012020010020201221 |
4 | 21111330000323330113 |
5 | 41004334332404130 |
6 | 1210540031031211 |
7 | 64246056211141 |
oct | 11257400737427 |
9 | 2241166106657 |
10 | 642030747415 |
11 | 22831368a192 |
12 | a451a96b507 |
13 | 4870a661355 |
14 | 23108431c91 |
15 | 11a79c8c87a |
hex | 957c03bf17 |
642030747415 has 8 divisors (see below), whose sum is σ = 771157611360. Its totient is φ = 513144121632.
The previous prime is 642030747389. The next prime is 642030747451. The reversal of 642030747415 is 514747030246.
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 642030747415 - 219 = 642030223127 is a prime.
It is a super-3 number, since 3×6420307474153 (a number of 36 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60053659 + ... + 60064348.
It is an arithmetic number, because the mean of its divisors is an integer number (96394701420).
Almost surely, 2642030747415 is an apocalyptic number.
642030747415 is a deficient number, since it is larger than the sum of its proper divisors (129126863945).
642030747415 is a wasteful number, since it uses less digits than its factorization.
642030747415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120119081.
The product of its (nonzero) digits is 564480, while the sum is 43.
The spelling of 642030747415 in words is "six hundred forty-two billion, thirty million, seven hundred forty-seven thousand, four hundred fifteen".
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