Base | Representation |
---|---|
bin | 100100101011000… |
… | …1000111010000001 |
3 | 10011202110221010000 |
4 | 1021112020322001 |
5 | 10010004243132 |
6 | 322034430213 |
7 | 42331264251 |
oct | 11126107201 |
9 | 3152427100 |
10 | 1230540417 |
11 | 581676257 |
12 | 2a4132369 |
13 | 167c28432 |
14 | b95dd961 |
15 | 7306e87c |
hex | 49588e81 |
1230540417 has 40 divisors (see below), whose sum is σ = 1921239936. Its totient is φ = 784129248.
The previous prime is 1230540371. The next prime is 1230540497. The reversal of 1230540417 is 7140450321.
It is not a de Polignac number, because 1230540417 - 28 = 1230540161 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (1230540497) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 159943 + ... + 167459.
Almost surely, 21230540417 is an apocalyptic number.
It is an amenable number.
1230540417 is a deficient number, since it is larger than the sum of its proper divisors (690699519).
1230540417 is an equidigital number, since it uses as much as digits as its factorization.
1230540417 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7619 (or 7610 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 27.
The square root of 1230540417 is about 35079.0595227409. The cubic root of 1230540417 is about 1071.5981640801.
Adding to 1230540417 its reverse (7140450321), we get a palindrome (8370990738).
The spelling of 1230540417 in words is "one billion, two hundred thirty million, five hundred forty thousand, four hundred seventeen".
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