Base | Representation |
---|---|
bin | 100110110100… |
… | …1010001000000 |
3 | 1102022002121000 |
4 | 1031221101000 |
5 | 20202312422 |
6 | 2004132000 |
7 | 335002302 |
oct | 115512100 |
9 | 42262530 |
10 | 20354112 |
11 | 10542389 |
12 | 6997000 |
13 | 42a866c |
14 | 29bb972 |
15 | 1bc0cac |
hex | 1369440 |
20354112 has 56 divisors (see below), whose sum is σ = 59842400. Its totient is φ = 6784128.
The previous prime is 20354101. The next prime is 20354119. The reversal of 20354112 is 21145302.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (20354119) 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, 4162 + ... + 7617.
Almost surely, 220354112 is an apocalyptic number.
It is an amenable number.
20354112 is an abundant number, since it is smaller than the sum of its proper divisors (39488288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20354112 is a wasteful number, since it uses less digits than its factorization.
20354112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11800 (or 11784 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 20354112 is about 4511.5531693642. The cubic root of 20354112 is about 273.0344117955.
Adding to 20354112 its reverse (21145302), we get a palindrome (41499414).
The spelling of 20354112 in words is "twenty million, three hundred fifty-four thousand, one hundred twelve".
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