Base | Representation |
---|---|
bin | 1101111011011111010101… |
… | …10011110100011111000001 |
3 | 11000110022212112102212001010 |
4 | 12331233222303310133001 |
5 | 13003331001404200031 |
6 | 145051503135231133 |
7 | 6311020303366164 |
oct | 675575263643701 |
9 | 130408775385033 |
10 | 30631351240641 |
11 | 983a757243788 |
12 | 35286896784a9 |
13 | 14126a739a808 |
14 | 77c7cb2d7adb |
15 | 381bd21d3246 |
hex | 1bdbeacf47c1 |
30631351240641 has 8 divisors (see below), whose sum is σ = 40841912192704. Its totient is φ = 20420845557840.
The previous prime is 30631351240613. The next prime is 30631351240649. The reversal of 30631351240641 is 14604215313603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30631351240641 - 218 = 30631350978497 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30631351240641.
It is not an unprimeable number, because it can be changed into a prime (30631351240649) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12506365 + ... + 14753706.
It is an arithmetic number, because the mean of its divisors is an integer number (5105239024088).
Almost surely, 230631351240641 is an apocalyptic number.
It is an amenable number.
30631351240641 is a deficient number, since it is larger than the sum of its proper divisors (10210560952063).
30631351240641 is a wasteful number, since it uses less digits than its factorization.
30631351240641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27634631.
The product of its (nonzero) digits is 155520, while the sum is 39.
The spelling of 30631351240641 in words is "thirty trillion, six hundred thirty-one billion, three hundred fifty-one million, two hundred forty thousand, six hundred forty-one".
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