Base | Representation |
---|---|
bin | 1011101000000111… |
… | …0010011111001000 |
3 | 22001111202210210220 |
4 | 2322001302133020 |
5 | 22342440443422 |
6 | 1233410310040 |
7 | 140225220033 |
oct | 27201623710 |
9 | 8044683726 |
10 | 3121031112 |
11 | 1361816961 |
12 | 731288320 |
13 | 3a97ac894 |
14 | 21871001a |
15 | 133eeee5c |
hex | ba0727c8 |
3121031112 has 32 divisors (see below), whose sum is σ = 7846178400. Its totient is φ = 1034530304.
The previous prime is 3121031057. The next prime is 3121031129. The reversal of 3121031112 is 2111301213.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 3121031091 and 3121031100.
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, 358953 + ... + 367544.
It is an arithmetic number, because the mean of its divisors is an integer number (245193075).
Almost surely, 23121031112 is an apocalyptic number.
It is an amenable number.
3121031112 is an abundant number, since it is smaller than the sum of its proper divisors (4725147288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3121031112 is a wasteful number, since it uses less digits than its factorization.
3121031112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 726685 (or 726681 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 15.
The square root of 3121031112 is about 55866.1893456140. The cubic root of 3121031112 is about 1461.3896682862.
Adding to 3121031112 its reverse (2111301213), we get a palindrome (5232332325).
The spelling of 3121031112 in words is "three billion, one hundred twenty-one million, thirty-one thousand, one hundred twelve".
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