Base | Representation |
---|---|
bin | 1110010110111… |
… | …01100001001001 |
3 | 22101122020110222 |
4 | 13023131201021 |
5 | 221313220001 |
6 | 15541315425 |
7 | 2661523415 |
oct | 713354111 |
9 | 271566428 |
10 | 120445001 |
11 | 61a96126 |
12 | 34405b75 |
13 | 1bc51641 |
14 | 11dd3d45 |
15 | a89261b |
hex | 72dd849 |
120445001 has 4 divisors (see below), whose sum is σ = 120622032. Its totient is φ = 120267972.
The previous prime is 120444979. The next prime is 120445079. The reversal of 120445001 is 100544021.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100544021 = 53 ⋅1897057.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-120445001 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120445081) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87491 + ... + 88856.
It is an arithmetic number, because the mean of its divisors is an integer number (30155508).
Almost surely, 2120445001 is an apocalyptic number.
It is an amenable number.
120445001 is a deficient number, since it is larger than the sum of its proper divisors (177031).
120445001 is an equidigital number, since it uses as much as digits as its factorization.
120445001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 177030.
The product of its (nonzero) digits is 160, while the sum is 17.
The square root of 120445001 is about 10974.7437783303. The cubic root of 120445001 is about 493.8513665512.
Adding to 120445001 its reverse (100544021), we get a palindrome (220989022).
The spelling of 120445001 in words is "one hundred twenty million, four hundred forty-five thousand, one".
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