Base | Representation |
---|---|
bin | 10110111111101110… |
… | …00101001011100101 |
3 | 1011212101121011212020 |
4 | 23133313011023211 |
5 | 200240444133101 |
6 | 5401015013353 |
7 | 614636441523 |
oct | 133767051345 |
9 | 34771534766 |
10 | 12345692901 |
11 | 5265904893 |
12 | 248666a259 |
13 | 1219970439 |
14 | 8518c7313 |
15 | 4c3ca8136 |
hex | 2dfdc52e5 |
12345692901 has 16 divisors (see below), whose sum is σ = 16877535360. Its totient is φ = 8022516480.
The previous prime is 12345692897. The next prime is 12345692903. The reversal of 12345692901 is 10929654321.
It is not a de Polignac number, because 12345692901 - 22 = 12345692897 is a prime.
It is a super-2 number, since 2×123456929012 (a number of 21 digits) contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12345692903) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94416 + ... + 183318.
It is an arithmetic number, because the mean of its divisors is an integer number (1054845960).
Almost surely, 212345692901 is an apocalyptic number.
It is an amenable number.
12345692901 is a deficient number, since it is larger than the sum of its proper divisors (4531842459).
12345692901 is a wasteful number, since it uses less digits than its factorization.
12345692901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 90076.
The product of its (nonzero) digits is 116640, while the sum is 42.
The spelling of 12345692901 in words is "twelve billion, three hundred forty-five million, six hundred ninety-two thousand, nine hundred one".
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