Base | Representation |
---|---|
bin | 11111110101010000000… |
… | …000011010011000110111 |
3 | 21202010021021202002210121 |
4 | 133311100000122120313 |
5 | 241314430020422111 |
6 | 4352525325432411 |
7 | 314016544433302 |
oct | 37652000323067 |
9 | 7663237662717 |
10 | 2187480639031 |
11 | 77378387a876 |
12 | 2b3b46a0b707 |
13 | 12b380c4833c |
14 | 77c35d9bb39 |
15 | 3bd7c2e1871 |
hex | 1fd5001a637 |
2187480639031 has 8 divisors (see below), whose sum is σ = 2307739518000. Its totient is φ = 2067734592000.
The previous prime is 2187480639017. The next prime is 2187480639037. The reversal of 2187480639031 is 1309360847812.
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 2187480639031 - 25 = 2187480638999 is a prime.
It is a super-2 number, since 2×21874806390312 (a number of 25 digits) contains 22 as substring.
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 2187480639031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2187480639037) 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, 128199220 + ... + 128216281.
It is an arithmetic number, because the mean of its divisors is an integer number (288467439750).
Almost surely, 22187480639031 is an apocalyptic number.
2187480639031 is a deficient number, since it is larger than the sum of its proper divisors (120258878969).
2187480639031 is a wasteful number, since it uses less digits than its factorization.
2187480639031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 256415969.
The product of its (nonzero) digits is 1741824, while the sum is 52.
The spelling of 2187480639031 in words is "two trillion, one hundred eighty-seven billion, four hundred eighty million, six hundred thirty-nine thousand, thirty-one".
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