Base | Representation |
---|---|
bin | 111001011111100010… |
… | …1110110001110111001 |
3 | 102210200111022011122001 |
4 | 1302333011312032321 |
5 | 4010324024043101 |
6 | 132415152501001 |
7 | 11630402511616 |
oct | 1627705661671 |
9 | 383614264561 |
10 | 123465065401 |
11 | 483a78a1037 |
12 | 1bb1824a761 |
13 | b848041922 |
14 | 5d9360d50d |
15 | 33292b1901 |
hex | 1cbf1763b9 |
123465065401 has 4 divisors (see below), whose sum is σ = 123473304292. Its totient is φ = 123456826512.
The previous prime is 123465065389. The next prime is 123465065443. The reversal of 123465065401 is 104560564321.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104560564321 = 2693 ⋅38826797.
It can be written as a sum of positive squares in 2 ways, for example, as 91278911376 + 32186154025 = 302124^2 + 179405^2 .
It is a cyclic number.
It is not a de Polignac number, because 123465065401 - 25 = 123465065369 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (123465065201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4096926 + ... + 4126951.
It is an arithmetic number, because the mean of its divisors is an integer number (30868326073).
Almost surely, 2123465065401 is an apocalyptic number.
It is an amenable number.
123465065401 is a deficient number, since it is larger than the sum of its proper divisors (8238891).
123465065401 is an equidigital number, since it uses as much as digits as its factorization.
123465065401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8238890.
The product of its (nonzero) digits is 86400, while the sum is 37.
The spelling of 123465065401 in words is "one hundred twenty-three billion, four hundred sixty-five million, sixty-five thousand, four hundred one".
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