Base | Representation |
---|---|
bin | 11101111110111101001… |
… | …00010000110111110011 |
3 | 10122111012120211010111211 |
4 | 32333132210100313303 |
5 | 113334403143410422 |
6 | 2105140502420551 |
7 | 134301042661426 |
oct | 16773644206763 |
9 | 3574176733454 |
10 | 1030231231987 |
11 | 367a11743a41 |
12 | 1477ba431757 |
13 | 761c55318a9 |
14 | 37c134839bd |
15 | 1bbea818577 |
hex | efde910df3 |
1030231231987 has 8 divisors (see below), whose sum is σ = 1058810659200. Its totient is φ = 1001690506944.
The previous prime is 1030231231973. The next prime is 1030231232027. The reversal of 1030231231987 is 7891321320301.
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 1030231231987 - 227 = 1030097014259 is a prime.
It is a super-2 number, since 2×10302312319872 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1030231231187) 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, 9621562 + ... + 9728047.
It is an arithmetic number, because the mean of its divisors is an integer number (132351332400).
Almost surely, 21030231231987 is an apocalyptic number.
1030231231987 is a deficient number, since it is larger than the sum of its proper divisors (28579427213).
1030231231987 is a wasteful number, since it uses less digits than its factorization.
1030231231987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19351085.
The product of its (nonzero) digits is 54432, while the sum is 40.
The spelling of 1030231231987 in words is "one trillion, thirty billion, two hundred thirty-one million, two hundred thirty-one thousand, nine hundred eighty-seven".
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