Base | Representation |
---|---|
bin | 1101011000010… |
… | …1011101110111 |
3 | 10220121020211020 |
4 | 3112011131313 |
5 | 103331334312 |
6 | 5322512223 |
7 | 1251010452 |
oct | 326053567 |
9 | 126536736 |
10 | 56121207 |
11 | 2975176a |
12 | 16965673 |
13 | b81c61c |
14 | 764c499 |
15 | 4dd878c |
hex | 3585777 |
56121207 has 8 divisors (see below), whose sum is σ = 75030384. Its totient is φ = 37313088.
The previous prime is 56121203. The next prime is 56121209. The reversal of 56121207 is 70212165.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 56121207 - 22 = 56121203 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (56121203) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23958 + ... + 26195.
It is an arithmetic number, because the mean of its divisors is an integer number (9378798).
Almost surely, 256121207 is an apocalyptic number.
56121207 is a deficient number, since it is larger than the sum of its proper divisors (18909177).
56121207 is a wasteful number, since it uses less digits than its factorization.
56121207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50529.
The product of its (nonzero) digits is 840, while the sum is 24.
The square root of 56121207 is about 7491.4088795099. The cubic root of 56121207 is about 382.8620622333.
The spelling of 56121207 in words is "fifty-six million, one hundred twenty-one thousand, two hundred seven".
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