Base | Representation |
---|---|
bin | 11101111110111101001… |
… | …00101001000111101111 |
3 | 10122111012121000011202111 |
4 | 32333132210221013233 |
5 | 113334403210100221 |
6 | 2105140504504451 |
7 | 134301043554130 |
oct | 16773644510757 |
9 | 3574177004674 |
10 | 1030231331311 |
11 | 367a11801626 |
12 | 1477ba47b127 |
13 | 761c5567b70 |
14 | 37c134abc87 |
15 | 1bbea837be1 |
hex | efde9291ef |
1030231331311 has 64 divisors (see below), whose sum is σ = 1303831904256. Its totient is φ = 792465408000.
The previous prime is 1030231331209. The next prime is 1030231331341. The reversal of 1030231331311 is 1131331320301.
It is not a de Polignac number, because 1030231331311 - 211 = 1030231329263 is a prime.
It is a super-2 number, since 2×10302313313112 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030231331341) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 167705106 + ... + 167711248.
It is an arithmetic number, because the mean of its divisors is an integer number (20372373504).
Almost surely, 21030231331311 is an apocalyptic number.
1030231331311 is a deficient number, since it is larger than the sum of its proper divisors (273600572945).
1030231331311 is a wasteful number, since it uses less digits than its factorization.
1030231331311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6592.
The product of its (nonzero) digits is 486, while the sum is 22.
Adding to 1030231331311 its reverse (1131331320301), we get a palindrome (2161562651612).
The spelling of 1030231331311 in words is "one trillion, thirty billion, two hundred thirty-one million, three hundred thirty-one thousand, three hundred eleven".
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