Base | Representation |
---|---|
bin | 1011100011001000… |
… | …0011111111011001 |
3 | 22000001102222122101 |
4 | 2320302003333121 |
5 | 22322113200124 |
6 | 1231342323401 |
7 | 136552452433 |
oct | 27062037731 |
9 | 8001388571 |
10 | 3100131289 |
11 | 1350a41582 |
12 | 726289561 |
13 | 3a5372a18 |
14 | 215a2d653 |
15 | 132272644 |
hex | b8c83fd9 |
3100131289 has 2 divisors, whose sum is σ = 3100131290. Its totient is φ = 3100131288.
The previous prime is 3100131259. The next prime is 3100131299. The reversal of 3100131289 is 9821310013.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2106810000 + 993321289 = 45900^2 + 31517^2 .
It is an emirp because it is prime and its reverse (9821310013) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 3100131289 - 229 = 2563260377 is a prime.
It is a super-2 number, since 2×31001312892 = 19221628018073603042, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (3100131259) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550065644 + 1550065645.
It is an arithmetic number, because the mean of its divisors is an integer number (1550065645).
Almost surely, 23100131289 is an apocalyptic number.
It is an amenable number.
3100131289 is a deficient number, since it is larger than the sum of its proper divisors (1).
3100131289 is an equidigital number, since it uses as much as digits as its factorization.
3100131289 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1296, while the sum is 28.
The square root of 3100131289 is about 55678.8226258422. The cubic root of 3100131289 is about 1458.1203196712.
The spelling of 3100131289 in words is "three billion, one hundred million, one hundred thirty-one thousand, two hundred eighty-nine".
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